diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ce10004..358e07f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -47,7 +47,7 @@ jobs:
         run: C:\msys64\msys2_shell.cmd -defterm -here -no-start -mingw64 -shell bash setup.sh
 
       - name: Package for Unreal Engine
-        run: python package.py "$env:UE_${{ matrix.version.major }}.${{ matrix.version.minor }}" "$env:RUNNER_TEMP"
+        run: python package.py "$env:UE_${{ matrix.version.major }}_${{ matrix.version.minor }}" "$env:RUNNER_TEMP"
 
       - name: Upload Build-Artifact
         if: startsWith(github.ref, 'refs/heads/') # Upload artifacts when commits (not tags) are pushed