diff --git a/.github/workflows/nextjs.yml b/.github/workflows/nextjs.yml
index dac02ba..bf272fb 100644
--- a/.github/workflows/nextjs.yml
+++ b/.github/workflows/nextjs.yml
@@ -28,6 +28,8 @@ jobs:
   # Build job
   build:
     runs-on: ubuntu-latest
+    env:
+      NEXT_PUBLIC_BASE_PATH: /planisphere
     steps:
       - name: Checkout
         uses: actions/checkout@v4
diff --git a/src/app/prefix.js b/src/app/prefix.js
index 18d2795..fe52ca7 100644
--- a/src/app/prefix.js
+++ b/src/app/prefix.js
@@ -1,3 +1,3 @@
-const prefix = process.env.NEXT_PUBLIC_BASE_PATH || '';
+const prefix = process.env.NEXT_PUBLIC_BASE_PATH || ""
 
 export { prefix };
\ No newline at end of file