diff --git a/sync.sh b/sync.sh
index 6da14d4..9865e96 100644
--- a/sync.sh
+++ b/sync.sh
@@ -4,7 +4,7 @@ TOPDIR=$(pwd)
 changelog=${TOPDIR}/changelog-${device}-${version}.md
 
 declare -A before
-tmp=($(repo forall -c 'echo "${REPO_PATH}:$(git rev-parse HEAD)"'))
+tmp=($(repo forall -c 'echo "${REPO_PATH}:$(git rev-parse --short HEAD)"'))
 for i in "${tmp[@]}"; do
     IFS=: read -r folder commit <<<"${i}"
     before[${folder}]=${commit}
@@ -14,7 +14,7 @@ repo sync -q -c -j 6 --fail-fast --force-sync --no-tags
 
 echo -e "# Build $(date '+%Y-%m-%d %H:%M:%S') UTC\n" >>"${changelog}"
 
-tmp=($(repo forall -c 'echo "${REPO_PATH}:$(git rev-parse HEAD)"'))
+tmp=($(repo forall -c 'echo "${REPO_PATH}:$(git rev-parse --short HEAD)"'))
 for i in "${tmp[@]}"; do
     IFS=: read -r folder commit <<<"${i}"
     if [[ "${folder}" != lineage/* && "${before[${folder}]}" != "${commit}" ]]; then