diff --git a/libavcodec/vaapi_vc1.c b/libavcodec/vaapi_vc1.c
index 97b23917f6..74ba783141 100644
--- a/libavcodec/vaapi_vc1.c
+++ b/libavcodec/vaapi_vc1.c
@@ -383,7 +383,7 @@ static int vaapi_vc1_start_frame(AVCodecContext *avctx, av_unused const uint8_t
     if (err)
         goto fail;
 
-    if (pic_param.bitplane_present.value) {
+    if (pic_param.bitplane_present.value & 0x7f) {
         uint8_t *bitplane;
         const uint8_t *ff_bp[3];
         int x, y, n;