diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c
index ca62dc1cf9..8e2ac5ffc6 100644
--- a/libavcodec/wmalosslessdec.c
+++ b/libavcodec/wmalosslessdec.c
@@ -798,6 +798,7 @@ static void revert_cdlms(WmallDecodeCtx *s, int ch,
             s->channel_residues[ch][icoef] = input;
         }
     }
+    emms_c();
 }
 
 static void revert_inter_ch_decorr(WmallDecodeCtx *s, int tile_size)