diff --git a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/rte/rte.component.js b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/rte/rte.component.js
index d499f47a9c..f2e6d78a77 100644
--- a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/rte/rte.component.js
+++ b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/rte/rte.component.js
@@ -276,7 +276,7 @@
 
                 // Readonly mode
                 baseLineConfigObj.toolbar = vm.readonly ? false : baseLineConfigObj.toolbar;
-                baseLineConfigObj.readonly = vm.readonly ? 1 : baseLineConfigObj.readonly;
+                baseLineConfigObj.readonly = vm.readonly ? true : baseLineConfigObj.readonly;
 
                 // We need to wait for DOM to have rendered before we can find the element by ID.
                 $timeout(function () {