diff --git a/.github/workflows/amd64_windows_cmake_cpp.yml b/.github/workflows/amd64_windows_cmake_cpp.yml
index bc42481463..d30baf8625 100644
--- a/.github/workflows/amd64_windows_cmake_cpp.yml
+++ b/.github/workflows/amd64_windows_cmake_cpp.yml
@@ -16,7 +16,7 @@ jobs:
     name: Windows • ${{ matrix.cmake.generator }} (${{ matrix.cmake.config }}) • C++
     runs-on: windows-latest
     env:
-      CTEST_OUTPUT_ON_FAILURE=1
+      CTEST_OUTPUT_ON_FAILURE: 1
     steps:
       - uses: actions/checkout@v4
       - name: Check cmake
diff --git a/.github/workflows/amd64_windows_cmake_dotnet.yml b/.github/workflows/amd64_windows_cmake_dotnet.yml
index 51323e450c..4e8e612092 100644
--- a/.github/workflows/amd64_windows_cmake_dotnet.yml
+++ b/.github/workflows/amd64_windows_cmake_dotnet.yml
@@ -15,7 +15,7 @@ jobs:
     name: Windows • ${{ matrix.cmake.generator }} • .Net
     runs-on: windows-latest
     env:
-      CTEST_OUTPUT_ON_FAILURE=1
+      CTEST_OUTPUT_ON_FAILURE: 1
     steps:
       - uses: actions/checkout@v4
       - name: Setup .NET 6.0
diff --git a/.github/workflows/amd64_windows_cmake_python.yml b/.github/workflows/amd64_windows_cmake_python.yml
index fd72f3f7fb..a8d0babfd6 100644
--- a/.github/workflows/amd64_windows_cmake_python.yml
+++ b/.github/workflows/amd64_windows_cmake_python.yml
@@ -21,7 +21,7 @@ jobs:
     name: Windows • ${{ matrix.cmake.generator }} • Python-${{ matrix.python.version }}
     runs-on: windows-latest
     env:
-      CTEST_OUTPUT_ON_FAILURE=1
+      CTEST_OUTPUT_ON_FAILURE: 1
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v4