diff --git a/help/help_mp-en.h b/help/help_mp-en.h
index ebc31823bc..61fb4d494b 100644
--- a/help/help_mp-en.h
+++ b/help/help_mp-en.h
@@ -363,7 +363,7 @@ static char help_text[]=
 // x11_common.c
 #define MSGTR_EwmhFullscreenStateFailed "\nX11: Couldn't send EWMH fullscreen Event!\n"
 
-#define MSGTR_NeedAfVolume "Mixer: This ao needs -af volume for changing volume\n"
+#define MSGTR_NeedAfVolume "Mixer: This audio output driver needs \"-af volume\" for changing volume.\n"
 
 // ====================== GUI messages/buttons ========================