diff --git a/composer.json b/composer.json
index 139f1ce..1e529f5 100644
--- a/composer.json
+++ b/composer.json
@@ -21,5 +21,10 @@
 			"composer sqllint"
 		],
 		"fix": "phpcbf"
+	},
+	"config": {
+		"allow-plugins": {
+			"dealerdirect/phpcodesniffer-composer-installer": true
+		}
 	}
 }
diff --git a/resources/scripts/codemirror.js b/resources/scripts/codemirror.js
index 1da73e1..a0190fc 100644
--- a/resources/scripts/codemirror.js
+++ b/resources/scripts/codemirror.js
@@ -423,7 +423,7 @@ if ( !String.prototype.includes ) {
 		codeMirror = codeMirrorDesktop;
 	}
 	if ( codeMirror ) {
-		mw.hook( 'wikipage.editform' ).add( function() {
+		mw.hook( 'wikiEditor.toolbarReady' ).add( function() {
 			enableCodeMirror();
 
 			// define JQuery hook for searching and replacing text using