diff --git a/src/port/bsearch_arg.c b/src/port/bsearch_arg.c
index 8849bdffd2..c9a11c9d6d 100644
--- a/src/port/bsearch_arg.c
+++ b/src/port/bsearch_arg.c
@@ -58,8 +58,8 @@ bsearch_arg(const void *key, const void *base0,
 			void *arg)
 {
 	const char *base = (const char *) base0;
-	int			lim,
-				cmp;
+	size_t		lim;
+	int			cmp;
 	const void *p;
 
 	for (lim = nmemb; lim != 0; lim >>= 1)