diff --git a/.github/workflows/nightly-a100.yml b/.github/workflows/nightly-a100.yml
index 0b19135..8a96bae 100644
--- a/.github/workflows/nightly-a100.yml
+++ b/.github/workflows/nightly-a100.yml
@@ -15,9 +15,7 @@ jobs:
   nightly:
     name: "Nightly GPU run (${{ github.event.inputs.milestone || 'M1' }})"
     runs-on: [self-hosted, a100]
-    # Graceful skip: if no self-hosted A100 runner is registered,
-    # this job will remain queued and eventually time out — not fail.
-    # To disable, add: if: false
+    if: false  # manual GPU run only — no self-hosted A100 runner registered
     timeout-minutes: 900  # 15h hard cap
 
     steps: