diff --git a/.github/workflows/build-cpp.yml b/.github/workflows/build-cpp.yml
index 013c16bb7..ce5d6ab45 100644
--- a/.github/workflows/build-cpp.yml
+++ b/.github/workflows/build-cpp.yml
@@ -114,8 +114,12 @@ jobs:
         run: |
           mkdir build
           cd build
-          cmake .. -DNLOHMANN="C:\vcpkg\buildtrees\boost\" -DBOOST="C:\vcpkg\buildtrees\nlohmann-json\" -DTARGET="include/libbitwarden_c.dll"
+          $DNLOHMANN_PATH="C:\vcpkg\buildtrees\nlohmann-json\"
+          $DBOOST_PATH="C:\vcpkg\buildtrees\boost\"
+          $DTARGET="include\libbitwarden_c.dll"
+          cmake .. -DNLOHMANN=$DNLOHMANN_PATH -DBOOST=$DBOOST_PATH -DTARGET=$DTARGET
           cmake --build .
+        shell: pwsh
 
       - name: Copy artifacts
         working-directory: languages/cpp/build