diff --git a/libavcodec/dirac_parser.c b/libavcodec/dirac_parser.c
index 8b7c55edefddb70317c214280e04321c8675da7a..45ded5a7795967b2cfc326ed303a172785bde214 100644
--- a/libavcodec/dirac_parser.c
+++ b/libavcodec/dirac_parser.c
@@ -251,7 +251,7 @@ static void dirac_parse_close(AVCodecParserContext *s)
     DiracParseContext *pc = s->priv_data;
 
     if (pc->buffer_size > 0)
-        av_free(pc->buffer);
+        av_freep(&pc->buffer);
 }
 
 AVCodecParser ff_dirac_parser = {