diff --git a/modules/callops/callops.c b/modules/callops/callops.c
index d90194ef2b7..4a6db085b5a 100644
--- a/modules/callops/callops.c
+++ b/modules/callops/callops.c
@@ -521,8 +521,8 @@ static int call_attended_transfer(struct dlg_cell *dlg, struct sip_msg *msg)
 
 static void call_dlg_created_CB(struct dlg_cell *dlg, int type, struct dlg_cb_params *params)
 {
-	str *param;
-	struct dlg_cell *old_dlg;
+	str *param = NULL;
+	struct dlg_cell *old_dlg = NULL;
 
 	if (!params->msg)
 		return;