diff --git a/include/boost/integer_traits.hpp b/include/boost/integer_traits.hpp
index ef6ec51..4e00a69 100644
--- a/include/boost/integer_traits.hpp
+++ b/include/boost/integer_traits.hpp
@@ -21,7 +21,7 @@
 
 // These are an implementation detail and not part of the interface
 #include <limits.h>
-// we need wchar.h for WCHAR_MAX/MIN but not all platforms provide it, 
+// we need wchar.h for WCHAR_MAX/MIN but not all platforms provide it,
 // and some may have <wchar.h> but not <cwchar> ...
 #if !defined(BOOST_NO_INTRINSIC_WCHAR_T) && (!defined(BOOST_NO_CWCHAR) || defined(sun) || defined(__sun))
 #include <wchar.h>