diff --git a/coreapi/callbacks.c b/coreapi/callbacks.c
index bce577773..a101dbc8e 100644
--- a/coreapi/callbacks.c
+++ b/coreapi/callbacks.c
@@ -147,6 +147,7 @@ static void call_received(SalOp *h){
 	if (is_duplicate_call(lc,from_addr,to_addr)){
 		ms_warning("Receiving duplicated call, refusing this one.");
 		sal_call_decline(h,SalReasonBusy,NULL);
+		sal_op_release(h);
 		linphone_address_destroy(from_addr);
 		linphone_address_destroy(to_addr);
 		return;
diff --git a/mediastreamer2 b/mediastreamer2
index 219ac72b1..ef298ba27 160000
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 219ac72b1747c2fda993e5908461f090822aa135
+Subproject commit ef298ba2719c94f2de563deb7a8ef441d45794fc