diff --git a/postgraphile/postgraphile/__tests__/schema/v4/rbac.test.ts b/postgraphile/postgraphile/__tests__/schema/v4/rbac.test.ts
index 1dcea434de..7e3f653b2a 100644
--- a/postgraphile/postgraphile/__tests__/schema/v4/rbac.test.ts
+++ b/postgraphile/postgraphile/__tests__/schema/v4/rbac.test.ts
@@ -2,7 +2,15 @@ import * as core from "./core.ts";
 
 test(
   "prints a schema from non-root role, using RBAC permissions",
-  core.test(__filename, ["a", "b", "c"], { ignoreRBAC: false }, (client) =>
-    client.query("set role postgraphile_test_authenticator"),
+  core.test(
+    __filename,
+    ["a", "b", "c"],
+    { ignoreRBAC: false },
+    async (client) => {
+      await client.query(
+        "revoke usage on schema enum_tables from postgraphile_test_authenticator",
+      );
+      await client.query("set role postgraphile_test_authenticator");
+    },
   ),
 );