diff --git a/src/modules/rtp_rtcp/source/rtp_rtcp_impl.h b/src/modules/rtp_rtcp/source/rtp_rtcp_impl.h
index 1214160a38..1a36859b5b 100644
--- a/src/modules/rtp_rtcp/source/rtp_rtcp_impl.h
+++ b/src/modules/rtp_rtcp/source/rtp_rtcp_impl.h
@@ -491,7 +491,7 @@ public:
     void OnReceivedNTP() ;
 
     // bw estimation
-    void OnPacketLossStatisticsUpdate(
+    virtual void OnPacketLossStatisticsUpdate(
         const WebRtc_UWord8 fractionLost,
         const WebRtc_UWord16 roundTripTime,
         const WebRtc_UWord32 lastReceivedExtendedHighSeqNum);