1 files changed, 2 insertions, 4 deletions

diff --git a/lib/libc/string/strncmp.c b/lib/libc/string/strncmp.c
index 659a7cbaff4f..5bc3d5e61a85 100644
--- a/lib/libc/string/strncmp.c
+++ b/lib/libc/string/strncmp.c
@@ -36,9 +36,7 @@ __FBSDID("$FreeBSD$");
 #include <string.h>
 
 int
-strncmp(s1, s2, n)
-	const char *s1, *s2;
-	size_t n;
+strncmp(const char *s1, const char *s2, size_t n)
 {
 
 	if (n == 0)
@@ -47,7 +45,7 @@ strncmp(s1, s2, n)
 		if (*s1 != *s2++)
 			return (*(const unsigned char *)s1 -
 				*(const unsigned char *)(s2 - 1));
-		if (*s1++ == 0)
+		if (*s1++ == '\0')
 			break;
 	} while (--n != 0);
 	return (0);