diff --git a/sync.sh b/sync.sh
index 06654c5..fae9e5b 100644
--- a/sync.sh
+++ b/sync.sh
@@ -11,7 +11,7 @@ changelog=${TOPDIR}/changelog-mondrian-${version}.md
 declare -A before
 if [[ -f gitstate-mondrian-${version}.txt ]]
 then
-    read -a tmp < gitstate-mondrian-${version}.txt  
+    read -a tmp < gitstate-mondrian-${version}.txt
 else
     tmp=($(repo forall -c 'echo "${REPO_PATH}:$(git rev-parse --short HEAD)"'))
 fi
@@ -20,7 +20,7 @@ for i in "${tmp[@]}"; do
     before[${folder}]=${commit}
 done
 
-repo sync -q -c -j 6 --fail-fast --force-sync --no-tags
+repo sync -q -c -j 6 --fail-fast --force-sync --no-tags || exit 1
 
 echo -e "# Build $(date '+%Y-%m-%d %H:%M:%S %Z')\n" >>"${changelog}"