diff --git a/services/postgresql.spec b/services/postgresql.spec
index a66adf3..a31cc9f 100644
--- a/services/postgresql.spec
+++ b/services/postgresql.spec
@@ -24,5 +24,5 @@ ports: postgresql
 	name: sockets directory
 	unless-directory: /tmp/${SERVICE_NAME}-${ENVIRONMENT}
 	# FIXME: impose permissions
-	command: mkdir -p /tmp/${SERVICE_NAME}-${ENVIRONMENT} && chown postgres:postgres /tmp/${SERVICE_NAME}-${ENVIRONMENT}
+	creation-command: mkdir -p /tmp/${SERVICE_NAME}-${ENVIRONMENT} && chown postgres:postgres /tmp/${SERVICE_NAME}-${ENVIRONMENT}
 	# FIXME: add postgresql-pre-start-db-dir around here