diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index 17f9495a1d..3927200e74 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -586,7 +586,7 @@ static inline int mpeg2_fast_decode_block_intra(MpegEncContext *s,
     dc = s->last_dc[component];
     dc += diff;
     s->last_dc[component] = dc;
-    block[0] = dc << (3 - s->intra_dc_precision);
+    block[0] = dc * (1 << (3 - s->intra_dc_precision));
     i = 0;
     if (s->intra_vlc_format)
         rl = &ff_rl_mpeg2;