--- a/media/webrtc/trunk/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
+++ b/media/webrtc/trunk/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
@@ -563,17 +563,17 @@ void RTCPReceiver::HandleReportBlock(
   // local NTP time when we received this
   reportBlock->lastReceivedRRNTPsecs = 0;
   reportBlock->lastReceivedRRNTPfrac = 0;
 
   _clock->CurrentNtp(reportBlock->lastReceivedRRNTPsecs,
                      reportBlock->lastReceivedRRNTPfrac);
 
   // time when we received this in MS
-  uint32_t receiveTimeMS = Clock::NtpToMs(reportBlock->lastReceivedRRNTPsecs,
+  uint64_t receiveTimeMS = Clock::NtpToMs(reportBlock->lastReceivedRRNTPsecs,
                                           reportBlock->lastReceivedRRNTPfrac);
 
   // Estimate RTT
   uint32_t d = (delaySinceLastSendReport & 0x0000ffff) * 1000;
   d /= 65536;
   d += ((delaySinceLastSendReport & 0xffff0000) >> 16) * 1000;
 
   int64_t RTT = 0;