diff --git a/win32/glob.c b/win32/glob.c
index c95c45794e1..0fcd63b3d36 100644
--- a/win32/glob.c
+++ b/win32/glob.c
@@ -519,8 +519,7 @@ glob0(pattern, pglob)
 }
 
 static int
-compare(p, q)
-	const void *p, *q;
+compare(const void *p, const void *q)
 {
 	return(strcmp(*(char **)p, *(char **)q));
 }