diff --git a/readme.md b/readme.md
index ef6a1a8..d8b84e0 100644
--- a/readme.md
+++ b/readme.md
@@ -142,7 +142,7 @@ Message that will be shown when an update is available.
 ##### isGlobal
 
 Type: `boolean`<br>
-Default: `true`
+Default: auto-detect
 
 Include the `-g` argument in the default message's `npm i` recommendation. You may want to change this if your CLI package can be installed as a dependency of another project, and don't want to recommend a global installation. This option is ignored if you supply your own `message` (see above).