diff --git a/webrtc/modules/video_render/video_render_frames.cc b/webrtc/modules/video_render/video_render_frames.cc
index 2c137a319..2968dfa3d 100644
--- a/webrtc/modules/video_render/video_render_frames.cc
+++ b/webrtc/modules/video_render/video_render_frames.cc
@@ -36,12 +36,14 @@ int32_t VideoRenderFrames::AddFrame(I420VideoFrame* new_frame) {
 
   if (new_frame->render_time_ms() + KOldRenderTimestampMS < time_now) {
     WEBRTC_TRACE(kTraceWarning, kTraceVideoRenderer, -1,
-                 "%s: too old frame.", __FUNCTION__);
+                 "%s: too old frame, timestamp=%u.",
+                 __FUNCTION__, new_frame->timestamp());
     return -1;
   }
   if (new_frame->render_time_ms() > time_now + KFutureRenderTimestampMS) {
     WEBRTC_TRACE(kTraceWarning, kTraceVideoRenderer, -1,
-                 "%s: frame too long into the future.", __FUNCTION__);
+                 "%s: frame too long into the future, timestamp=%u.",
+                 __FUNCTION__, new_frame->timestamp());
     return -1;
   }
 
@@ -59,8 +61,8 @@ int32_t VideoRenderFrames::AddFrame(I420VideoFrame* new_frame) {
         KMaxNumberOfFrames) {
       // Already allocated too many frames.
       WEBRTC_TRACE(kTraceWarning, kTraceVideoRenderer,
-                   -1, "%s: too many frames, limit: %d", __FUNCTION__,
-                   KMaxNumberOfFrames);
+                   -1, "%s: too many frames, timestamp=%u, limit=%d",
+                   __FUNCTION__, new_frame->timestamp(), KMaxNumberOfFrames);
       return -1;
     }