diff --git a/src/cmd/ip/snoopy/icmp.c b/src/cmd/ip/snoopy/icmp.c
index bf09f8d8..8e528dc9 100755
--- a/src/cmd/ip/snoopy/icmp.c
+++ b/src/cmd/ip/snoopy/icmp.c
@@ -54,7 +54,7 @@ static Mux p_mux[] =
 	{0}
 };
 
-char *icmpmsg[236] =
+char *icmpmsg[256] =
 {
 [EchoRep]	"EchoRep",
 [Unreachable]	"Unreachable",