diff --git a/gst/rtpmanager/rtpsource.c b/gst/rtpmanager/rtpsource.c
index 067f9f19e9..9fe5888b3a 100644
--- a/gst/rtpmanager/rtpsource.c
+++ b/gst/rtpmanager/rtpsource.c
@@ -1496,7 +1496,8 @@ rtp_source_get_new_sr (RTPSource * src, guint64 ntpnstime,
       t_rtp -= gst_util_uint64_scale_int (diff, src->clock_rate, GST_SECOND);
     }
   } else {
-    GST_WARNING ("no clock-rate, cannot interpolate rtp time");
+    GST_WARNING ("no clock-rate, cannot interpolate rtp time for SSRC %u",
+        src->ssrc);
   }
 
   /* convert the NTP time in nanoseconds to 32.32 fixed point */