diff --git a/enum_type.h b/enum_type.h
index 2e93e154..b57ed2a5 100644
--- a/enum_type.h
+++ b/enum_type.h
@@ -72,7 +72,7 @@ SOFTWARE.
 /// std::cout << "Direction = " << direction.c_str(); // Prints "Direction = North"
 ///\endcode
 /// If a conversion to a string is not required then the 'ENUM_TYPE' declaration may be omitted.
-/// In that case the c_str() function will return a "?". This will also be the case for any 
+/// In that case the c_str() function will return a "?". This will also be the case for any
 /// enumeration value that does not have an ENUM_TYPE entry.
 ///\ingroup utilities