diff --git a/libavformat/mov.c b/libavformat/mov.c
index d19b213ffa..1a4450153f 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -3258,6 +3258,7 @@ fail:
             av_freep(&sc->extradata[j]);
     }
 
+    sc->stsd_count = 0;
     av_freep(&sc->extradata);
     av_freep(&sc->extradata_size);
     return ret;