diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1
index c07f433f63..596087efc3 100644
--- a/DOCS/man/en/mplayer.1
+++ b/DOCS/man/en/mplayer.1
@@ -2690,6 +2690,7 @@ GGI graphics system video output driver
 .RSs
 .IPs <driver>
 Explicitly choose the GGI driver to use.
+Replace any ',' that would appear in the driver string by a '.'.
 .RE
 .PD 1
 .