diff --git a/.github/actionlint.yaml b/.github/actionlint.yaml
index c6eaf34..7951d15 100644
--- a/.github/actionlint.yaml
+++ b/.github/actionlint.yaml
@@ -4,3 +4,10 @@ self-hosted-runner:
     - warp-ubuntu-latest-arm64-4x
     - warp-ubuntu-latest-x64-2x
     - warp-ubuntu-latest-x64-4x
+
+# GitHub added the native stack event before actionlint's event table.
+# Remove this exception once actionlint recognizes it.
+paths:
+  .github/workflows/ci.yml:
+    ignore:
+      - '^invalid activity type "stacked" for "pull_request" Webhook event\.'
diff --git a/hk.pkl b/hk.pkl
index 6a7fd2c..cf0d8cf 100644
--- a/hk.pkl
+++ b/hk.pkl
@@ -24,11 +24,7 @@ local linters = new Mapping<String, Step> {
   }
 
   // Infrastructure:
-  ["actionlint"] = (Builtins.actionlint) {
-    // GitHub added this native-stack event before actionlint's event table.
-    // Ignore only this diagnostic until actionlint recognizes it.
-    check = "actionlint -ignore '^invalid activity type \"stacked\" for \"pull_request\" Webhook event\\.' {{files}}"
-  }
+  ["actionlint"] = Builtins.actionlint
 
   // Configuration files:
   ["pkl"] = Builtins.pkl