diff --git a/DOCS/mplayer.1 b/DOCS/mplayer.1
index 969fe911a6..cd75057ea8 100644
--- a/DOCS/mplayer.1
+++ b/DOCS/mplayer.1
@@ -178,6 +178,8 @@ q or ESC        stop playing and quit program
 
 + or -          adjust audio delay by +/- 0.1 second
 
+/ or *          decrease/increase volume
+
 o               toggle OSD:  none / seek / seek+timer
 .IP
 .SH FILES AND DIRECTORIES