diff --git a/src/switch_rtp.c b/src/switch_rtp.c
index 04d5940167..038e1d981b 100644
--- a/src/switch_rtp.c
+++ b/src/switch_rtp.c
@@ -2968,7 +2968,7 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
 		}
 
 
-		if (rtp_session->dtmf_data.in_digit_ts) {
+		if (bytes && rtp_session->dtmf_data.in_digit_ts) {
 			if (!switch_rtp_ready(rtp_session)) {
 				goto end;
 			}