diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index db08c69..a2e61c9 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -24,7 +24,7 @@ jobs:
         iwr http://fritzbox3272.controlliamo.com/WUIsBack/dll/LegacyUpdate64.dll -outfile '.\x64\Release\LegacyUpdate.dll'
     - name: Compile WUIsBack
       run: |
-        makensis .\setup\setup.nsi
+        makensis "%~dp0\setup\setup.nsi"
     - name: Upload Nightly Build
       uses: actions/upload-artifact@v4
       with: