diff --git a/edit/source-editor.js b/edit/source-editor.js
index 660b26f8..f8a52c93 100644
--- a/edit/source-editor.js
+++ b/edit/source-editor.js
@@ -49,7 +49,6 @@ function createSourceEditor(style) {
   const cm = CodeMirror.fromTextArea($('#sections textarea'));
   // too many functions depend on this global
   editors.push(cm);
-  cm.focus();
 
   // draw metas info
   updateMeta();
@@ -60,6 +59,9 @@ function createSourceEditor(style) {
   initLint();
   initLinterSwitch();
 
+  // focus must be the last action, otherwise the style is duplicated on saving
+  cm.focus();
+
   function initAppliesToLineWidget() {
     const PREF_NAME = 'editor.appliesToLineWidget';
     const widget = createAppliesToLineWidget(cm);