diff --git a/nsxiv.1 b/nsxiv.1
index b29c96b..f4801b0 100644
--- a/nsxiv.1
+++ b/nsxiv.1
@@ -254,6 +254,9 @@ Go
 .I count
 * 10 images forward.
 .TP
+.B Ctrl-6
+Go to the previously viewed image.
+.TP
 Handle multi-frame images:
 .TP
 .B Ctrl-n