diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c
index 619e9030cb..3b8cd22933 100644
--- a/libavcodec/vc1.c
+++ b/libavcodec/vc1.c
@@ -4347,6 +4347,7 @@ AVCodec vc1_decoder = {
     vc1_decode_frame,
     CODEC_CAP_DELAY,
     NULL,
+    .flush          = ff_mpeg_flush,
     .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1"),
     .pix_fmts = ff_pixfmt_list_420
 };
@@ -4362,6 +4363,7 @@ AVCodec wmv3_decoder = {
     vc1_decode_frame,
     CODEC_CAP_DELAY,
     NULL,
+    .flush          = ff_mpeg_flush,
     .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9"),
     .pix_fmts = ff_pixfmt_list_420
 };