diff --git a/client/src/layout/masthead.js b/client/src/layout/masthead.js
index 9fcc930e387..ec5bfffaca9 100644
--- a/client/src/layout/masthead.js
+++ b/client/src/layout/masthead.js
@@ -44,7 +44,7 @@ export class MastheadState {
 }
 
 function staticUrlToPrefixed(appRoot, url) {
-    return url?.startsWith("/") ? `${appRoot}${url}` : url;
+    return url?.startsWith("/") ? `${appRoot}${url.substring(1)}` : url;
 }
 
 export function mountMasthead(el, options, mastheadState) {