diff --git a/src/public/app/services/frontend_script_api.js b/src/public/app/services/frontend_script_api.js
index f7e3c07a0..6f0601d3a 100644
--- a/src/public/app/services/frontend_script_api.js
+++ b/src/public/app/services/frontend_script_api.js
@@ -87,7 +87,7 @@ function FrontendScriptApi(startNote, currentNote, originEntity = null, $contain
      * @param {ToolbarButtonOptions} opts
      */
     this.addButtonToToolbar = opts => {
-        const buttonId = "toolbar-button-" + opts.title.replace(/[^a-zA-Z0-9]/g, "-");
+        const buttonId = "toolbar-button-" + opts.title.replace(/\s/g, "-");
 
         const button = $('<button>')
             .addClass("btn btn-sm")