diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f534581f..59ed2a07 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -50,7 +50,7 @@ jobs:
         id: cache-vtk
         uses: actions/cache@v4
         with:
-          path: prime-numbers
+          path: ${{github.workspace}}/vtk/install
           key: ${{ runner.os }}-vtk-9.3.1
 
       # Check out VTK
@@ -69,7 +69,7 @@ jobs:
         uses: threeal/cmake-action@v2.0.0
         with:
           source-dir: ${{github.workspace}}/vtk
-          build-dir: ${{github.workspace}}/build
+          build-dir: ${{github.workspace}}/vtk/build
           build-args: |
             -t
             install
@@ -82,7 +82,7 @@ jobs:
             VTK_GROUP_ENABLE_Qt:STRING=YES
             VTK_MODULE_ENABLE_VTK_GUISupportQtQuick:STRING=NO
             VTK_MODULE_ENABLE_VTK_GUISupportQtSQL:STRING=NO
-            CMAKE_INSTALL_PREFIX=${{github.workspace}}/install
+            CMAKE_INSTALL_PREFIX=${{github.workspace}}/vtk/install
      
       - name: Setup tmate session
         uses: mxschmitt/action-tmate@v3