diff --git a/media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.h b/media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.h
index 1dcc70519a..6229e1c95b 100644
--- a/media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.h
+++ b/media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.h
@@ -530,7 +530,8 @@ public:
   void GetFingerprint(nsAString& fingerprint)
   {
     char *tmp;
-    GetFingerprint(&tmp);
+    nsresult rv = GetFingerprint(&tmp);
+    NS_ENSURE_SUCCESS_VOID(rv);
     fingerprint.AssignASCII(tmp);
     delete[] tmp;
   }