diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 18caf2c..f8ca7f0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -28,11 +28,13 @@ jobs:
           ./build.sh x86
 
       - name: Build OpenIPC
+        env:
+          MSPOSD_VERSION: ${{ env.COMMIT_SHA }}
         run: |
           sudo apt-get update
           DEBIAN_FRONTEND=noninteractive TZ=Etc/UTC sudo apt-get -y install git make wget gcc libevent-dev libcsfml-dev file g++ cpio unzip rsync bc bzip2
           cd firmware
-          make BOARD=ssc338q_fpv MSPOSD_VERSION=${GITHUB_SHA} MSPOSD_SITE="https://github.com/${GITHUB_REPOSITORY}/archive/refs/tags/${MSPOSD_VERSION}.tar.gz" br-msposd
+          make BOARD=ssc338q_fpv MSPOSD_VERSION=${MSPOSD_VERSION} MSPOSD_SITE="https://github.com/${GITHUB_REPOSITORY}/archive/refs/tags/${MSPOSD_VERSION}.tar.gz" br-msposd
  
       - name: Upload binary
         uses: actions/upload-artifact@v4