diff --git a/player/audio.c b/player/audio.c
index eb6081e26d..529902b535 100644
--- a/player/audio.c
+++ b/player/audio.c
@@ -656,6 +656,9 @@ static bool get_sync_samples(struct MPContext *mpctx, int *skip)
     }
     ptsdiff = MPCLAMP(ptsdiff, -3600, 3600);
 
+    MP_VERBOSE(mpctx, "audio sync: sync_to_video=%d, offset=%f\n",
+               sync_to_video, ptsdiff);
+
     int align = af_format_sample_alignment(ao_format);
     *skip = (int)(-ptsdiff * play_samplerate) / align * align;
     return true;