diff --git a/etc/input.conf b/etc/input.conf
index aa765ce293..87c199db20 100644
--- a/etc/input.conf
+++ b/etc/input.conf
@@ -119,6 +119,8 @@
 #Alt+s screenshot - each-frame          # automatically screenshot every frame
 #w add panscan -0.1                     # zoom out with -panscan 0 -fs
 #e add panscan +0.1                     #      in
+# cycle video aspect ratios; "-1" is the container aspect
+#A cycle_values video-aspect "16:9" "4:3" "2.35:1" "-1"
 #POWER quit
 #MENU cycle osd
 #PLAY cycle pause