diff --git a/include/tclap/ArgTraits.h b/include/tclap/ArgTraits.h
index df1fe50..5910596 100644
--- a/include/tclap/ArgTraits.h
+++ b/include/tclap/ArgTraits.h
@@ -115,6 +115,7 @@ public:
 	typedef typename DefaultArgTrait<T, hasTrait>::ValueCategory ValueCategory;
 };
 
+} // namespace
+
 #endif
 
-} // namespace