diff --git a/src/modules/dialog/dlg_cseq.c b/src/modules/dialog/dlg_cseq.c
index 021cc101e8e..a85b7265149 100644
--- a/src/modules/dialog/dlg_cseq.c
+++ b/src/modules/dialog/dlg_cseq.c
@@ -381,7 +381,7 @@ int dlg_cseq_msg_sent(sr_event_param_t *evp)
 		goto done;
 	}
 
-	if((get_to(&msg)->tag_value.len>0)) {
+	if((get_to(&msg)->tag_value.len<=0)) {
 		/* intial request - handle only INVITEs */
 		if(msg.first_line.u.request.method_value!=METHOD_INVITE) {
 			goto done;