diff --git a/include/tclap/Arg.h b/include/tclap/Arg.h
index 659c8e9..6158059 100644
--- a/include/tclap/Arg.h
+++ b/include/tclap/Arg.h
@@ -6,7 +6,7 @@
  *
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno .
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/ArgException.h b/include/tclap/ArgException.h
index 3411aa9..f789d1c 100644
--- a/include/tclap/ArgException.h
+++ b/include/tclap/ArgException.h
@@ -5,7 +5,7 @@
  *  file:  ArgException.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/ArgTraits.h b/include/tclap/ArgTraits.h
index 5910596..6064b50 100644
--- a/include/tclap/ArgTraits.h
+++ b/include/tclap/ArgTraits.h
@@ -5,7 +5,7 @@
  *  file:  ArgTraits.h
  *
  *  Copyright (c) 2007, Daniel Aarno, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/CmdLine.h b/include/tclap/CmdLine.h
index 8772fec..485caa4 100644
--- a/include/tclap/CmdLine.h
+++ b/include/tclap/CmdLine.h
@@ -6,7 +6,7 @@
  *
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/CmdLineInterface.h b/include/tclap/CmdLineInterface.h
index f10caf7..7e5d3ee 100644
--- a/include/tclap/CmdLineInterface.h
+++ b/include/tclap/CmdLineInterface.h
@@ -5,7 +5,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/CmdLineOutput.h b/include/tclap/CmdLineOutput.h
index 71ee5a3..11b8939 100644
--- a/include/tclap/CmdLineOutput.h
+++ b/include/tclap/CmdLineOutput.h
@@ -5,7 +5,7 @@
  *  file:  CmdLineOutput.h
  * 
  *  Copyright (c) 2004, Michael E. Smoot
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/Constraint.h b/include/tclap/Constraint.h
index 4644fc8..7106553 100644
--- a/include/tclap/Constraint.h
+++ b/include/tclap/Constraint.h
@@ -4,7 +4,7 @@
  *  file:  Constraint.h
  *
  *  Copyright (c) 2005, Michael E. Smoot
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/DocBookOutput.h b/include/tclap/DocBookOutput.h
index 07095e4..e4c664a 100644
--- a/include/tclap/DocBookOutput.h
+++ b/include/tclap/DocBookOutput.h
@@ -5,7 +5,7 @@
  *  file:  DocBookOutput.h
  * 
  *  Copyright (c) 2004, Michael E. Smoot
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/HelpVisitor.h b/include/tclap/HelpVisitor.h
index cc3bd07..ee09144 100644
--- a/include/tclap/HelpVisitor.h
+++ b/include/tclap/HelpVisitor.h
@@ -4,7 +4,7 @@
  *  file:  HelpVisitor.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/IgnoreRestVisitor.h b/include/tclap/IgnoreRestVisitor.h
index e328649..e3e063c 100644
--- a/include/tclap/IgnoreRestVisitor.h
+++ b/include/tclap/IgnoreRestVisitor.h
@@ -4,7 +4,7 @@
  *  file:  IgnoreRestVisitor.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/MultiArg.h b/include/tclap/MultiArg.h
index 5442540..943db76 100644
--- a/include/tclap/MultiArg.h
+++ b/include/tclap/MultiArg.h
@@ -4,7 +4,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/MultiSwitchArg.h b/include/tclap/MultiSwitchArg.h
index 2bd80bf..d6f92eb 100644
--- a/include/tclap/MultiSwitchArg.h
+++ b/include/tclap/MultiSwitchArg.h
@@ -6,7 +6,7 @@
 *  Copyright (c) 2003, Michael E. Smoot .
 *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
 *  Copyright (c) 2005, Michael E. Smoot, Daniel Aarno, Erik Zeek.
-*  All rights reverved.
+*  All rights reserved.
 *
 *  See the file COPYING in the top directory of this distribution for
 *  more information.
diff --git a/include/tclap/OptionalUnlabeledTracker.h b/include/tclap/OptionalUnlabeledTracker.h
index 8174c5f..92f8929 100644
--- a/include/tclap/OptionalUnlabeledTracker.h
+++ b/include/tclap/OptionalUnlabeledTracker.h
@@ -5,7 +5,7 @@
  *  file:  OptionalUnlabeledTracker.h
  * 
  *  Copyright (c) 2005, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/StandardTraits.h b/include/tclap/StandardTraits.h
index de28422..9eb8f94 100644
--- a/include/tclap/StandardTraits.h
+++ b/include/tclap/StandardTraits.h
@@ -5,7 +5,7 @@
  *  file:  StandardTraits.h
  *
  *  Copyright (c) 2007, Daniel Aarno, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/StdOutput.h b/include/tclap/StdOutput.h
index 944cff4..f224ea2 100644
--- a/include/tclap/StdOutput.h
+++ b/include/tclap/StdOutput.h
@@ -5,7 +5,7 @@
  *  file:  StdOutput.h
  * 
  *  Copyright (c) 2004, Michael E. Smoot
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/SwitchArg.h b/include/tclap/SwitchArg.h
index b3e5ce7..6e90a9b 100644
--- a/include/tclap/SwitchArg.h
+++ b/include/tclap/SwitchArg.h
@@ -4,7 +4,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/UnlabeledMultiArg.h b/include/tclap/UnlabeledMultiArg.h
index d5e1781..0cf15f9 100644
--- a/include/tclap/UnlabeledMultiArg.h
+++ b/include/tclap/UnlabeledMultiArg.h
@@ -4,7 +4,7 @@
  *  file:  UnlabeledMultiArg.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/UnlabeledValueArg.h b/include/tclap/UnlabeledValueArg.h
index 5721d61..23ab1b9 100644
--- a/include/tclap/UnlabeledValueArg.h
+++ b/include/tclap/UnlabeledValueArg.h
@@ -5,7 +5,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/ValueArg.h b/include/tclap/ValueArg.h
index e81e2d4..0be8888 100644
--- a/include/tclap/ValueArg.h
+++ b/include/tclap/ValueArg.h
@@ -4,7 +4,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/ValuesConstraint.h b/include/tclap/ValuesConstraint.h
index cb41f64..91db53c 100644
--- a/include/tclap/ValuesConstraint.h
+++ b/include/tclap/ValuesConstraint.h
@@ -5,7 +5,7 @@
  *  file:  ValuesConstraint.h
  * 
  *  Copyright (c) 2005, Michael E. Smoot
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/VersionVisitor.h b/include/tclap/VersionVisitor.h
index c110d4f..3ece2f4 100644
--- a/include/tclap/VersionVisitor.h
+++ b/include/tclap/VersionVisitor.h
@@ -5,7 +5,7 @@
  *  file:  VersionVisitor.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/Visitor.h b/include/tclap/Visitor.h
index 3d555a0..382ed3b 100644
--- a/include/tclap/Visitor.h
+++ b/include/tclap/Visitor.h
@@ -4,7 +4,7 @@
  *  file:  Visitor.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/XorHandler.h b/include/tclap/XorHandler.h
index c9161f0..bf1d094 100644
--- a/include/tclap/XorHandler.h
+++ b/include/tclap/XorHandler.h
@@ -5,7 +5,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/ZshCompletionOutput.h b/include/tclap/ZshCompletionOutput.h
index 6da4e30..5965c84 100644
--- a/include/tclap/ZshCompletionOutput.h
+++ b/include/tclap/ZshCompletionOutput.h
@@ -5,7 +5,7 @@
  *  file:  ZshCompletionOutput.h
  * 
  *  Copyright (c) 2006, Oliver Kiddle
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.