diff --git a/.ci/phpcs.sh b/.ci/phpcs.sh
index 3cadcaeddd..1639ec4a49 100755
--- a/.ci/phpcs.sh
+++ b/.ci/phpcs.sh
@@ -20,6 +20,8 @@
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
+SCRIPT_DIR="$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
+
 # clean up php code
 cd $SCRIPT_DIR/php-cs-fixer
 composer update --quiet