diff --git a/.github/workflows/build-mosdns.yml b/.github/workflows/build-mosdns.yml
index 8f9a2fb9..268ba63e 100644
--- a/.github/workflows/build-mosdns.yml
+++ b/.github/workflows/build-mosdns.yml
@@ -32,11 +32,13 @@ jobs:
         with:
           ref: mosdns
           path: mosdns
+      - name: Clean mosdns branch
+        if: github.event_name == 'schedule'
+        continue-on-error: true
+        run: rm mosdns/*
       - name: Rebuild mosdns branch
         if: github.event_name == 'schedule'
-        run: |
-          rm mosdns/*
-          ./exp_mosdns.sh
+        run: ./exp_mosdns.sh
       - name: Push to mosdns branch
         if: github.event_name == 'schedule'
         continue-on-error: true