diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
index 74a2302cb..8cd9c1af7 100644
--- a/.github/workflows/ccpp.yml
+++ b/.github/workflows/ccpp.yml
@@ -31,7 +31,7 @@ jobs:
     container: 'docker.io/hectorm/qemu-haiku:latest'
     steps:
       - name: startvm
-        run: 'container-init & timeout 600 vmshell exit 0'
+        run: container-init & timeout 600 vmshell exit 0
 
       - name: pkgman
         run: 'vmshell pkgman install -y make'
@@ -40,10 +40,12 @@ jobs:
         uses: 'actions/checkout@v3'
 
       - name: copy
-        run: 'vmshell mkdir ./src/; tar -cf - ./ | vmshell tar -xf - -C ./src/'
+        run: |
+          vmshell mkdir ./src/
+          tar -cf - ./ | vmshell tar -xf - -C ./src/
 
       - name: build
-        run: 'vmshell make'
+        run: vmshell make -C src
 
   build-windows:
     runs-on: windows-latest