diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index a634db1..32c917d 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -20,9 +20,14 @@ jobs:
     - name: configure
       run: |
         cmake -H. -Bbuild -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Debug -DENABLE_COVERAGE=On
-    - name: building and testing
+    - name: building
       run: |
-        ctest --build-and-test
+        cmake --build build --config Debug --target coverage -j4
+    - name: testing
+      run: |
+        cd build
+        ctest .
+
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v3
       with: