diff --git a/resources/ve-cm/ve.ui.CodeMirror.init.js b/resources/ve-cm/ve.ui.CodeMirror.init.js
index e87c03d5..eb41aa36 100644
--- a/resources/ve-cm/ve.ui.CodeMirror.init.js
+++ b/resources/ve-cm/ve.ui.CodeMirror.init.js
@@ -1,6 +1,8 @@
 require( '../ext.CodeMirror.data.js' );
 
-if ( mw.config.get( 'extCodeMirrorConfig' ).useV6 ) {
+const urlParams = new URLSearchParams( window.location.search );
+
+if ( mw.config.get( 'extCodeMirrorConfig' ).useV6 || urlParams.get( 'cm6enable' ) ) {
 	mw.loader.load( 'ext.CodeMirror.v6.visualEditor' );
 } else {
 	mw.loader.load( 'ext.CodeMirror.visualEditor' );