diff --git a/extensions/git/package.json b/extensions/git/package.json
index 17ddbced72d..d56de56d476 100644
--- a/extensions/git/package.json
+++ b/extensions/git/package.json
@@ -3740,7 +3740,7 @@
             "%config.addAICoAuthor.all%"
           ],
           "scope": "resource",
-          "default": "all",
+          "default": "chatAndAgent",
           "description": "%config.addAICoAuthor%"
         },
         "git.ignoreSubmodules": {
diff --git a/extensions/git/src/repository.ts b/extensions/git/src/repository.ts
index 21b98bfd839..2d385b7b98e 100644
--- a/extensions/git/src/repository.ts
+++ b/extensions/git/src/repository.ts
@@ -1498,7 +1498,7 @@ export class Repository implements Disposable {
 		}
 
 		const config = workspace.getConfiguration('git', Uri.file(this.root));
-		const addAICoAuthor = config.get<'off' | 'chatAndAgent' | 'all'>('addAICoAuthor', 'all');
+		const addAICoAuthor = config.get<'off' | 'chatAndAgent' | 'all'>('addAICoAuthor', 'chatAndAgent');
 
 		if (addAICoAuthor === 'off') {
 			return message;