diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0f543e4..53987fe 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,7 +26,7 @@ jobs:
     name: "qemux86_64"
     # Eclipse Foundation: Label for large GitHub Build runners (paid)
     # See Eclipse HelpDesk #1915
-    runs-on: ["LargeRunner_16cores_64GB_600GB", "self-hosted"]
+    runs-on: "LargeRunner_16cores_64GB_600GB"
 #    runs-on: ubuntu-22.04
 #    runs-on: self-hosted
 #    container: debian:bullseye
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d4bc6b6..7274e7f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,11 +20,13 @@ on:
 jobs:
   call-build:
     name: Build
+    if: github.repository_owner == 'eclipse-leda'
     uses: ./.github/workflows/build.yml
     secrets: inherit
 
   upload-assets:
     name: Upload assets
+    if: github.repository_owner == 'eclipse-leda'
     runs-on: ubuntu-22.04
     needs: [ call-build ]
     permissions: