diff --git a/configure.ac b/configure.ac
index 86feadcb91f74f70a1cf6ae100acd8c31e4dfe86..6b5a6ab0f3d4f641dd713e0df7f740807ba7f6af 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2990,7 +2990,7 @@ dnl Those options have to be here because the .pc can be bogus for ffmpeg previo
      fi])
 
  AC_ARG_WITH(ffmpeg-x264,
-   [    --with-ffmpeg-x264 specify if ffmpeg has been compiled with libamrnb support],
+   [    --with-ffmpeg-x264 specify if ffmpeg has been compiled with libx264 support],
    [
      if test "$with_ffmpeg_x264" = "yes";	then
         VLC_ADD_LIBS([ffmpeg],[-lx264])