diff --git a/.github/workflows/netlify-pr.yaml b/.github/workflows/netlify-pr.yaml
index 77dd0641..4d73a9f9 100644
--- a/.github/workflows/netlify-pr.yaml
+++ b/.github/workflows/netlify-pr.yaml
@@ -25,7 +25,7 @@ jobs:
       - run: ${{ tojson(github.event) }}
         shell: cat {0}
 
-      - run: ${{ tojson(steps.prdetails.outputs.data) }}
+      - run: ${{ steps.prdetails.outputs.data }}
         shell: cat {0}
 
       - name: 📝 Create Deployment
@@ -35,7 +35,7 @@ jobs:
           step: start
           token: ${{ secrets.GITHUB_TOKEN }}
           env: Netlify
-          ref: ${{ steps.prdetails.outputs.data.head.sha || github.ref || github.head_ref }}
+          ref: ${{ fromJSON(steps.prdetails.outputs.data).head.sha || github.ref || github.head_ref }}
           desc: |
             Do you trust the author of this PR? Maybe this build will steal your keys or give you malware.
             Exercise caution. Use test accounts.
@@ -53,7 +53,9 @@ jobs:
         run: curl -s https://raw.githubusercontent.com/element-hq/element-call/main/config/netlify_redirects > webapp/_redirects
 
       - name: Add config file
-        run: curl -s "https://raw.githubusercontent.com/${{ env.PR_HEAD_FULL_NAME }}/${{ steps.prdetails.outputs.data.head.ref }}/config/element_io_preview.json" > webapp/config.json
+        run: curl -s "https://raw.githubusercontent.com/${{ env.PR_HEAD_FULL_NAME }}/${{ env.PR_HEAD_REF }}/config/element_io_preview.json" > webapp/config.json
+        env:
+          PR_HEAD_REF: ${{ fromJSON(steps.prdetails.outputs.data).head.ref }}
 
       - name: ☁️ Deploy to Netlify
         id: netlify