diff --git a/runtime/doc/map.txt b/runtime/doc/map.txt
index 873d5d6..47e706b 100644
--- a/runtime/doc/map.txt
+++ b/runtime/doc/map.txt
@@ -1,4 +1,4 @@
-*map.txt*       For Vim version 8.2.  Last change: 2020 Dec 10
+*map.txt*       For Vim version 8.2.  Last change: 2021 Mar 17
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -271,8 +271,8 @@
 	endfunc
 	nnoremap <expr> x StoreColumn()
 	nmap ! f!x
-You will notice that g:column has the value from before executing "fx",
-because "z" is evaluated before "fx" is executed.
+You will notice that g:column has the value from before executing "f!",
+because "x" is evaluated before "f!" is executed.
 This can be solved by inserting <Ignore> before the character that is
 expression-mapped: >
 	nmap ! f!<Ignore>x