diff --git a/lib/memcasecmp.h b/lib/memcasecmp.h
index 32695c119..84c2af09e 100644
--- a/lib/memcasecmp.h
+++ b/lib/memcasecmp.h
@@ -1,8 +1,8 @@
 #undef PARAMS
 #if defined (__STDC__) && __STDC__
-# define PARAMS(args) args
+# define PARAMS(Args) Args
 #else
-# define PARAMS(args) ()
+# define PARAMS(Args) ()
 #endif
 
 int