diff --git a/filters/f_decoder_wrapper.c b/filters/f_decoder_wrapper.c
index d96c780e9c..3f7fe50aad 100644
--- a/filters/f_decoder_wrapper.c
+++ b/filters/f_decoder_wrapper.c
@@ -1119,6 +1119,8 @@ static void public_f_destroy(struct mp_filter *f)
         p->dec_thread_valid = false;
     }
 
+    mp_filter_free_children(f);
+
     talloc_free(p->dec_root_filter);
     talloc_free(p->queue);
     pthread_mutex_destroy(&p->cache_lock);