diff --git a/.github/workflows/mobile.js.yml b/.github/workflows/mobile.js.yml
index ac307a3f..6de42dc6 100644
--- a/.github/workflows/mobile.js.yml
+++ b/.github/workflows/mobile.js.yml
@@ -12,6 +12,9 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./mobile-ui
     strategy:
       matrix:
         node-version: [12.x, 14.x, 16.x]