diff --git a/libavcodec/xvmc.h b/libavcodec/xvmc.h
index 9f67dd6bee..cb56d50bf3 100644
--- a/libavcodec/xvmc.h
+++ b/libavcodec/xvmc.h
@@ -147,7 +147,7 @@ struct xvmc_pix_fmt {
         - application - zeroes it on get_buffer() and after successful
                         ff_draw_horiz_band().
         - libavcodec  - each macroblock increases it with the number
-                        of coded blocks in it.
+                        of coded blocks it contains.
     */
     int             next_free_data_block_num;