diff --git a/connector/docker-integration-tests/src/test/resources/postgres-krb-setup.sh b/connector/docker-integration-tests/src/test/resources/postgres-krb-setup.sh
index dd9fd8cb51adf..3c6aff0ee3227 100755
--- a/connector/docker-integration-tests/src/test/resources/postgres-krb-setup.sh
+++ b/connector/docker-integration-tests/src/test/resources/postgres-krb-setup.sh
@@ -16,6 +16,6 @@
 # limitations under the License.
 #
 
-sed -i 's/host all all all .*/host all all all gss/g' /var/lib/postgresql/data/pg_hba.conf
-echo "krb_server_keyfile='/docker-entrypoint-initdb.d/postgres.keytab'" >> /var/lib/postgresql/data/postgresql.conf
+sed -i 's/host all all all .*/host all all all gss/g' $(find /var/lib/postgresql -name pg_hba.conf)
+echo "krb_server_keyfile='/docker-entrypoint-initdb.d/postgres.keytab'" >> $(find /var/lib/postgresql -name postgresql.conf)
 psql -U postgres -c "CREATE ROLE \"postgres/__IP_ADDRESS_REPLACE_ME__@EXAMPLE.COM\" LOGIN SUPERUSER"