diff --git a/ui/src/index.tsx b/ui/src/index.tsx
index 82c709d5d3..7559d02ebf 100644
--- a/ui/src/index.tsx
+++ b/ui/src/index.tsx
@@ -97,7 +97,7 @@ ReactDOM.render(
       reactQueryClient={queryClient}
       feastUIConfigs={{
         tabsRegistry: tabsRegistry,
-        projectListPromise: fetch(process.env.PUBLIC_URL || "" + "/projects-list.json", {
+        projectListPromise: fetch((process.env.PUBLIC_URL || "") + "/projects-list.json", {
             headers: {
               "Content-Type": "application/json",
             },