diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 82ca2ad..d49cad6 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -34,7 +34,7 @@ jobs:
           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
-          sed -i "s/openipc/${GITHUB_REPOSITORY%/*}" general/package/msposd/msposd.mk
+          sed  "s/openipc/${GITHUB_REPOSITORY%/*}/" general/package/msposd/msposd.mk
           make BOARD=ssc338q_fpv MSPOSD_VERSION=${MSPOSD_VERSION} br-msposd
  
       - name: Upload binary