diff --git a/.github/workflows/build_micropython.yml b/.github/workflows/build_micropython.yml
index 31487c7b6..2608abde4 100644
--- a/.github/workflows/build_micropython.yml
+++ b/.github/workflows/build_micropython.yml
@@ -25,7 +25,7 @@ jobs:
       working-directory: ./lib/lv_bindings/lvgl
       run: |
         git fetch --force ${{ github.event.repository.git_url }} "+refs/heads/*:refs/remotes/origin/*"
-        git fetch --force ${{ github.event.repository.git_url }} "+refs/pull/*/head:refs/remotes/origin/pr/*"
+        git fetch --force ${{ github.event.repository.git_url }} "+refs/pull/*:refs/remotes/origin/pr/*"
         git checkout ${{ github.sha }} || git checkout ${{ github.event.pull_request.head.sha }}
         git submodule update --init --recursive
     - name: Build mpy-cross