diff --git a/.github/workflows/publish_documentation.yml b/.github/workflows/publish_documentation.yml
index 536cc8bfb..d0fb8f436 100644
--- a/.github/workflows/publish_documentation.yml
+++ b/.github/workflows/publish_documentation.yml
@@ -17,6 +17,7 @@ concurrency:
 
 jobs:
   publish_documentation:
+    if: github.repository == 'nlohmann/json'
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3