diff --git a/.github/workflows/windows-native.yml b/.github/workflows/windows-native.yml
index f207a55cf..9ed21184b 100644
--- a/.github/workflows/windows-native.yml
+++ b/.github/workflows/windows-native.yml
@@ -185,7 +185,7 @@ jobs:
           export PATH=${{ env.VCPKG_DIR_U }}/installed/${{ matrix.arch.triplet }}${{ matrix.build_mode.path_prefix }}/bin:$PATH
           mkdir -p "build/Testing/Temporary"
           cp "cmake/CTestCostData.txt" "build/Testing/Temporary"
-          ctest --parallel ${{ env.CORES }} --test-dir build -C ${{ matrix.build_mode.build_type }}--output-on-failure
+          ctest --parallel ${{ env.CORES }} --test-dir build -C ${{ matrix.build_mode.build_type }} --output-on-failure
 
 # Local build hints:
 # cmd /k "C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Auxiliary\Build\vcvars64.bat"