diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c58c946..d07d75b 100755
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          if ! git checkout update build.md; then
+          if ! git checkout origin/update build.md; then
             echo "first time building!"
             echo "SHOULD_BUILD=1" >> $GITHUB_OUTPUT
           else