diff --git a/run_test.sh b/run_test.sh
index bcb8f35..ab14326 100755
--- a/run_test.sh
+++ b/run_test.sh
@@ -5,6 +5,6 @@ set -e
 chown -R postgres:postgres /dist
 mkdir -p /var/log/pogsgresql
 chown postgres:postgres /var/log/pogsgresql
-sudo -u postgres /usr/lib/postgresql/10/bin/pg_ctl -D /etc/postgresql/10/main -l /var/log/pogsgresql/postgresql-10-main.log start
+sudo -u postgres /usr/lib/postgresql/${PG_MAJOR}/bin/pg_ctl -D /etc/postgresql/10/main -l /var/log/pogsgresql/postgresql-${PG_MAJOR}-main.log start
 cd /dist
 sudo -u postgres -i tox -c /dist/tox.ini