diff --git a/.github/workflows/update_wiki.yml b/.github/workflows/update_wiki.yml
index 957c3b1..35f9d87 100644
--- a/.github/workflows/update_wiki.yml
+++ b/.github/workflows/update_wiki.yml
@@ -19,6 +19,7 @@ jobs:
           repository: ${{github.repository}}.wiki
           persist-credentials: true
           path: wiki
+          ref: master
       - name: Copy files
         run: |
           rsync -av --exclude=.git/* ${GITHUB_WORKSPACE}/docs/ ${GITHUB_WORKSPACE/wiki/