diff --git a/include/extctype.h b/include/extctype.h
index 6ca7ec655..94c21a9ed 100755
--- a/include/extctype.h
+++ b/include/extctype.h
@@ -222,4 +222,4 @@ struct s_prm {
 };
 
 /* @END */
-#endif // __EXTCTYPE_H
+#endif /* __EXTCTYPE_H */