diff --git a/.github/workflows/build_main.yml b/.github/workflows/build_main.yml
index e8f7054b2c32f..5e40368a08e00 100644
--- a/.github/workflows/build_main.yml
+++ b/.github/workflows/build_main.yml
@@ -29,12 +29,7 @@ jobs:
     permissions:
       packages: write
     name: Run
-    # Skip:
-    #   - pushes to `branch-4.x` on apache/spark: post-merge CI on this
-    #     integration/staging branch is disabled to save resources.
-    #   - pushes to `master` on forks: the "Sync fork" button mirrors
-    #     apache/spark and would otherwise re-run the full build on every sync.
-    if: >-
-      (github.repository == 'apache/spark' && github.ref != 'refs/heads/branch-4.x')
-      || (github.repository != 'apache/spark' && github.ref != 'refs/heads/master')
+    # Skip pushes on apache/spark: post-merge CI on this integration/staging
+    # branch is disabled to save resources.
+    if: github.repository != 'apache/spark'
     uses: ./.github/workflows/build_and_test.yml