diff --git a/res/res_pjsip_sdp_rtp.c b/res/res_pjsip_sdp_rtp.c
index b66c1aeb82..21de4409c1 100644
--- a/res/res_pjsip_sdp_rtp.c
+++ b/res/res_pjsip_sdp_rtp.c
@@ -781,7 +781,7 @@ static void apply_dtls_attrib(struct ast_sip_session_media *session_media,
 	struct ast_rtp_engine_dtls *dtls = ast_rtp_instance_get_dtls(session_media->rtp);
 	pj_str_t *value;
 
-	if (!attr->value.ptr) {
+	if (!attr->value.ptr || !dtls) {
 		return;
 	}