diff --git a/.github/workflows/ci.cpu.yml b/.github/workflows/ci.cpu.yml
index e4c90f93c..ddaf68d41 100644
--- a/.github/workflows/ci.cpu.yml
+++ b/.github/workflows/ci.cpu.yml
@@ -106,8 +106,9 @@ jobs:
             -DSTDEXEC_ENABLE_TBB:BOOL=${{ !contains(matrix.cxxflags, '-fsanitize') }} \
             -DSTDEXEC_ENABLE_ASIO:BOOL=TRUE \
             -DSTDEXEC_ASIO_IMPLEMENTATION:STRING=boost \
-            -DCMAKE_CXX_STANDARD=${{ matrix.cxxstd }} \
-            -DCMAKE_CXX_EXTENSIONS=OFF \
+            -DCMAKE_CXX_STANDARD:STRING=${{ matrix.cxxstd }} \
+            -DCMAKE_CXX_EXTENSIONS:BOOL=OFF \
+            -DSTDEXEC_BUILD_TESTS:BOOL=ON \
             ;
 
           # Compile
@@ -199,7 +200,9 @@ jobs:
             -DCMAKE_CXX_COMPILER=${{ matrix.compiler }} \
             -DSTDEXEC_ENABLE_ASIO:BOOL=TRUE \
             -DSTDEXEC_ASIO_IMPLEMENTATION:STRING=boost \
-            -DCMAKE_CXX_STANDARD=20
+            -DCMAKE_CXX_STANDARD:STRING=20 \
+            -DSTDEXEC_BUILD_TESTS:BOOL=ON
+
           cmake --build build/ -v
           cd build
           ctest --output-on-failure
diff --git a/.github/workflows/ci.gpu.yml b/.github/workflows/ci.gpu.yml
index 17adc9d56..4ca81c304 100644
--- a/.github/workflows/ci.gpu.yml
+++ b/.github/workflows/ci.gpu.yml
@@ -102,6 +102,7 @@ jobs:
             -DCMAKE_CXX_COMPILER=${{ matrix.cxx }} \
             -DCMAKE_CUDA_COMPILER=${{ matrix.cxx }} \
             -DCMAKE_CUDA_ARCHITECTURES=${{ matrix.sm }} \
+            -DSTDEXEC_BUILD_TESTS:BOOL=ON \
             ;
 
           # Compile
diff --git a/.github/workflows/test-windows.ps1 b/.github/workflows/test-windows.ps1
index 007cde49f..704893426 100644
--- a/.github/workflows/test-windows.ps1
+++ b/.github/workflows/test-windows.ps1
@@ -23,6 +23,7 @@ Invoke-NativeCommand cmake -B $BuildDirectory -G Ninja `
 	"-DCMAKE_BUILD_TYPE=$Config" `
 	"-DCMAKE_MSVC_DEBUG_INFORMATION_FORMAT:STRING=Embedded" `
 	"-DSTDEXEC_ENABLE_ASIO:BOOL=TRUE" `
-	"-DSTDEXEC_ASIO_IMPLEMENTATION:STRING=boost" .
+	"-DSTDEXEC_ASIO_IMPLEMENTATION:STRING=boost" `
+	"-DSTDEXEC_BUILD_TESTS:BOOL=TRUE" .
 Invoke-NativeCommand cmake --build $BuildDirectory
 Invoke-NativeCommand ctest --test-dir $BuildDirectory