diff --git a/.github/workflows/dylint.yml b/.github/workflows/dylint.yml
index 1086b55f..64f020bd 100644
--- a/.github/workflows/dylint.yml
+++ b/.github/workflows/dylint.yml
@@ -13,6 +13,10 @@ on:
         default: ""
   pull_request:
     branches: [main]
+  # setup-soldr skips cache uploads on PRs. A main run seeds the shared
+  # Dylint compile cache that subsequent PRs are allowed to restore.
+  push:
+    branches: [main]
 
 # Auto-cancel superseded PR runs: pushing again to a feature branch
 # supersedes the in-flight run instead of queueing behind it. Non-PR
diff --git a/ci/test_fractional_workflows.py b/ci/test_fractional_workflows.py
index 44323632..d669ff3b 100644
--- a/ci/test_fractional_workflows.py
+++ b/ci/test_fractional_workflows.py
@@ -45,6 +45,7 @@ def test_full_matrix_matches_every_supported_board(self):
         self.assertEqual("./.github/workflows/dylint.yml", full["jobs"]["dylint"]["uses"])
         self.assertNotIn("run_full", full["jobs"]["dylint"]["with"])
         dylint = self.load("dylint.yml")
+        self.assertEqual(["main"], dylint[True]["push"]["branches"])
         self.assertEqual("Dylint policy", dylint["jobs"]["policy"]["name"])
         self.assertNotIn("if", dylint["jobs"]["dylint"])
         self.assertEqual("ubuntu-latest", dylint["jobs"]["dylint"]["runs-on"])