diff --git a/channels/chan_skinny.c b/channels/chan_skinny.c
index 3cfd9d6468..c9d3f88548 100644
--- a/channels/chan_skinny.c
+++ b/channels/chan_skinny.c
@@ -2862,7 +2862,7 @@ static int get_input(struct skinnysession *s)
 			return -1;
 		}
 		dlen = letohl(*(int *)s->inbuf);
-		if (dlen < 0) {
+		if (dlen < 4) {
 			ast_log(LOG_WARNING, "Skinny Client sent invalid data.\n");
 			return -1;
 		}