diff --git a/src/scan.c b/src/scan.c
index 85b36b3..e02ed86 100644
--- a/src/scan.c
+++ b/src/scan.c
@@ -115,7 +115,7 @@ int scan_file(const char *file, unsigned index) {
 
 	AVFormatContext *container = NULL;
 
-	AVCodec *codec;
+	const AVCodec *codec;
 	AVCodecContext *ctx;
 
 	AVFrame *frame;