diff --git a/.github/workflows/jscpd.yml b/.github/workflows/jscpd.yml
index 281a4e5e8ec..b1e2ff03675 100644
--- a/.github/workflows/jscpd.yml
+++ b/.github/workflows/jscpd.yml
@@ -1,6 +1,6 @@
 name: Check for Duplicated Code
 
-on: 
+on:
   pull_request_target:
     branches:
       - master
@@ -24,6 +24,10 @@ jobs:
       run: |
         npm install -g jscpd diff-so-fancy
 
+    - name: Check out PR
+      run: |
+        git checkout ${{ github.event.pull_request.head.sha }}
+
     - name: Create jscpd config file
       run: |
         echo '{