diff --git a/libavcodec/parser.c b/libavcodec/parser.c
index 20f0031780..a1e5c00f24 100644
--- a/libavcodec/parser.c
+++ b/libavcodec/parser.c
@@ -214,10 +214,12 @@ int av_parser_change(AVCodecParserContext *s,
 
 void av_parser_close(AVCodecParserContext *s)
 {
+    if(s){
     if (s->parser->parser_close)
         s->parser->parser_close(s);
     av_free(s->priv_data);
     av_free(s);
+    }
 }
 
 /*****************************************************/