diff --git a/src/Umbraco.Web.UI.Client/devops/build/copy-to-cms.js b/src/Umbraco.Web.UI.Client/devops/build/copy-to-cms.js
index a24ca70d00..6a46b4b1a5 100644
--- a/src/Umbraco.Web.UI.Client/devops/build/copy-to-cms.js
+++ b/src/Umbraco.Web.UI.Client/devops/build/copy-to-cms.js
@@ -1,6 +1,7 @@
-import { cpSync } from 'fs';
+import { cpSync, rmSync } from 'fs';
 
 const srcDir = './dist-cms';
 const outputDir = '../Umbraco.Cms.StaticAssets/wwwroot/umbraco/backoffice';
 
+rmSync(outputDir, { recursive: true });
 cpSync(srcDir, outputDir, { recursive: true });