diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1
index 5a56da8163..bf3db2fd53 100644
--- a/DOCS/man/en/mplayer.1
+++ b/DOCS/man/en/mplayer.1
@@ -182,7 +182,10 @@ more.
 .PP
 .B gmplayer
 is MPlayer with a graphical user interface.
-It has the same options as MPlayer.
+It has the same options as MPlayer, however they might not all work correctly
+due to conflicts with the configuration via the GUI (stored in gui.conf).
+In particular some options might be overwritten by settings in gui.conf while
+others might end up stored permanently in gui.conf.
 .PP
 Usage examples to get you started quickly can be found at the end
 of this man page.