diff --git a/libavformat/dashdec.c b/libavformat/dashdec.c
index 5b1ade094f..56babba075 100644
--- a/libavformat/dashdec.c
+++ b/libavformat/dashdec.c
@@ -359,6 +359,7 @@ static void free_representation(struct representation *pls)
     }
 
     av_freep(&pls->url_template);
+    av_freep(&pls->lang);
     av_freep(&pls);
 }