diff --git a/libconfig-validator/scripts/ci.sh b/libconfig-validator/scripts/ci.sh
index 49a2797..90b8c70 100755
--- a/libconfig-validator/scripts/ci.sh
+++ b/libconfig-validator/scripts/ci.sh
@@ -73,6 +73,7 @@ clean() {
 # $2: directory containing build assets
 # $3: Author in <author-name author@example.com> format
 write_to_branch() {
+	readonly PROJECT_ROOT=$(pwd)
 	cd $PROJECT_ROOT
 	original_branch=$(git branch --show-current)
 	tmp_dir=$(mktemp -d)