--- a/media/webrtc/signaling/src/media-conduit/MediaConduitInterface.h
+++ b/media/webrtc/signaling/src/media-conduit/MediaConduitInterface.h
@@ -548,14 +548,14 @@ public:
   virtual MediaConduitErrorCode
   EnableMIDExtension(bool enabled, uint8_t id) = 0;
 
   virtual bool SetDtmfPayloadType(unsigned char type, int freq) = 0;
 
   virtual bool InsertDTMFTone(int channel, int eventCode, bool outOfBand,
                               int lengthMs, int attenuationDb) = 0;
 
-  virtual void GetRtpSources(int64_t aTimeNow,
+  virtual void GetRtpSources(const int64_t aTimeNow,
                              nsTArray<dom::RTCRtpSourceEntry>& outSources) = 0;
 
 };
 }
 #endif