diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 520fdc749..0401e9663 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -17,13 +17,10 @@ jobs:
         include:
         - os: ubuntu-latest
           devScript: ./dev.sh
-          shell: bash
         - os: macOS-latest
           devScript: ./dev.sh
-          shell: bash
         - os: windows-latest
-          devScript: dev.cmd
-          shell: cmd
+          devScript: ./dev
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v1
@@ -33,14 +30,12 @@ jobs:
       run: |
         ${{ matrix.devScript }} layout Release
       working-directory: src
-      shell: ${{ matrix.shell }}
 
     # Run tests
     - name: L0
       run: |
         ${{ matrix.devScript }} test
       working-directory: src
-      shell: ${{ matrix.shell }}
   
     # Create runner package tar.gz/zip
     - name: Package Release
@@ -48,7 +43,6 @@ jobs:
       run: |
         ${{ matrix.devScript }} package Release
       working-directory: src
-      shell: ${{ matrix.shell }}
       
     # Upload runner package tar.gz/zip as artifact
     - name: Publish Artifact