diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 24aa944..96b026f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -53,8 +53,8 @@ jobs:
 
       - name: Fetch tags from fork if PR is from a fork
         if:
-          ${{ github.event.pull_request.head.repo.full_name != github.repository
-          }}
+          ${{ github.event_name == 'pull_request' &&
+          github.event.pull_request.head.repo.full_name != github.repository }}
         run: |
           git remote add fork https://github.com/${{ github.event.pull_request.head.repo.full_name }}.git
           git fetch fork --tags