diff --git a/.github/workflows/illumos.yml b/.github/workflows/illumos.yml
index 0d4d5a3de..2bcc9d9f3 100644
--- a/.github/workflows/illumos.yml
+++ b/.github/workflows/illumos.yml
@@ -8,7 +8,7 @@ on:
 jobs:
   gcc:
     runs-on: ubuntu-latest
-    if: ${{ github.repository_owner == 'haproxy' }}
+    if: ${{ github.repository_owner == 'haproxy' || github.event_name == 'workflow_dispatch' }}
     permissions:
       contents: read
     steps: