diff --git a/libavcodec/rawdec.c b/libavcodec/rawdec.c
index a4cb151197..36b6b66bca 100644
--- a/libavcodec/rawdec.c
+++ b/libavcodec/rawdec.c
@@ -87,7 +87,7 @@ enum AVPixelFormat ff_find_pix_fmt(const PixelFormatTag *tags, unsigned int four
             return tags->pix_fmt;
         tags++;
     }
-    return AV_PIX_FMT_YUV420P;
+    return AV_PIX_FMT_NONE;
 }
 
 static av_cold int raw_init_decoder(AVCodecContext *avctx)