diff --git a/include/tclap/ArgTraits.h b/include/tclap/ArgTraits.h
index 0b2c18f..e894d75 100644
--- a/include/tclap/ArgTraits.h
+++ b/include/tclap/ArgTraits.h
@@ -82,6 +82,7 @@ struct ArgTraits {
     //typedef ValueLike ValueCategory;
 };
 
+} // namespace
+
 #endif
 
-} // namespace