diff --git a/scripts/check-terraform-isolation.test.mjs b/scripts/check-terraform-isolation.test.mjs
index 9ddd0023..45c18fc8 100644
--- a/scripts/check-terraform-isolation.test.mjs
+++ b/scripts/check-terraform-isolation.test.mjs
@@ -157,7 +157,7 @@ test("isolation workflow re-evaluates on labeled and unlabeled without rerunning
   const isolationYaml = readFileSync(path.join(workflows, "terraform-isolation.yaml"), "utf8");
 
   for (const eventType of ["opened", "synchronize", "reopened", "labeled", "unlabeled"]) {
-    assert.match(isolationYaml, new RegExp(`^      - ${eventType}$`, "m"), eventType);
+    assert.match(isolationYaml, new RegExp(`^ {6}- ${eventType}$`, "m"), eventType);
   }
 
   assert.doesNotMatch(ciYaml, /^ {6}- labeled$/m);