diff --git a/doc_src/cmds/abbr.rst b/doc_src/cmds/abbr.rst
index 28eea2130..4c968e013 100644
--- a/doc_src/cmds/abbr.rst
+++ b/doc_src/cmds/abbr.rst
@@ -98,7 +98,7 @@ This first creates a function ``vim_edit`` which prepends ``vim`` before its arg
 
 ::
 
-    abbr 4DIRS --set-cursor ! "$(string join \n -- 'for dir in */' 'cd $dir' '!' 'cd ..' 'end')"
+    abbr 4DIRS --set-cursor=! "$(string join \n -- 'for dir in */' 'cd $dir' '!' 'cd ..' 'end')"
 
 This creates an abbreviation "4DIRS" which expands to a multi-line loop "template." The template enters each directory and then leaves it. The cursor is positioned ready to enter the command to run in each directory, at the location of the ``!``, which is itself erased.