diff --git a/nnn.1 b/nnn.1
index b1643d9..bdbe570 100644
--- a/nnn.1
+++ b/nnn.1
@@ -13,6 +13,7 @@
 .Op Ar -f
 .Op Ar -H
 .Op Ar -i
+.Op Ar -K
 .Op Ar -n
 .Op Ar -p file
 .Op Ar -r
@@ -60,6 +61,9 @@ supports the following options:
 .Fl i
         start in navigate-as-you-type mode
 .Pp
+.Fl K
+        test for keybind collision
+.Pp
 .Fl n
         use case-insensitive version compare to sort files
 .Pp