diff --git a/stackgres-k8s/src/operator/src/main/resources/templates/start-patroni.sh b/stackgres-k8s/src/operator/src/main/resources/templates/start-patroni.sh
index 2fd971410..3a0c7b43b 100644
--- a/stackgres-k8s/src/operator/src/main/resources/templates/start-patroni.sh
+++ b/stackgres-k8s/src/operator/src/main/resources/templates/start-patroni.sh
@@ -375,6 +375,7 @@ mv "$PATRONI_CONFIG_FILE_PATH".tmp "$PATRONI_CONFIG_FILE_PATH"
 cat << EOF > "${LOCAL_BIN_PATH}/postgres"
 #!/bin/sh
 chmod 700 "$PG_DATA_PATH"
+chmod 700 "${PG_DATA_PATH}/server.key" # fix private key file server.key has group or world access error
 exec "$PG_BIN_PATH/postgres" "\$@"
 EOF
 chmod 755 "${LOCAL_BIN_PATH}/postgres"