1 files changed, 1 insertions, 1 deletions

diff --git a/usr.sbin/arp/arp.c b/usr.sbin/arp/arp.c
index f251243d6af1d..a4ec683d4caac 100644
--- a/usr.sbin/arp/arp.c
+++ b/usr.sbin/arp/arp.c
@@ -224,7 +224,7 @@ file(char *name)
 	args[3] = &arg[3][0];
 	args[4] = &arg[4][0];
 	retval = 0;
-	while(fgets(line, 100, fp) != NULL) {
+	while(fgets(line, sizeof(line), fp) != NULL) {
 		if ((p = strchr(line, '#')) != NULL)
 			*p = '\0';
 		for (p = line; isblank(*p); p++);