diff --git a/doc/set-commands.md b/doc/set-commands.md
index fd54924fe..27d2b4c00 100644
--- a/doc/set-commands.md
+++ b/doc/set-commands.md
@@ -8,7 +8,7 @@ Every effort is made to make these options compatible with Vim behaviour.
 However, some differences are inevitable.
 
 ```
-'clipboard'     'cb'    Defines clipboard behaviour
+'clipboard'     'cb'    Defines clipboard behavior
         A comma-separated list of words to control clipboard behaviour:
            unnamed      The clipboard register '*' is used instead of the
                         unnamed register