diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2a81321..5bd0483 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -83,7 +83,6 @@ jobs:
           cd ../boost-root/libs/lexical_cast
           cmake -S test/cmake_subdir_test -B build_module \
             -GNinja \
-            -DBUILD_TESTING=1 \
             -DBOOST_USE_MODULES=1 \
             -DCMAKE_CXX_COMPILER=clang++-19 \
             -DCMAKE_C_COMPILER=clang-19
@@ -97,7 +96,6 @@ jobs:
           cd ../boost-root/libs/lexical_cast
           cmake -S test/cmake_subdir_test -B build_module \
             -GNinja \
-            -DBUILD_TESTING=1 \
             -DBOOST_USE_MODULES=1 \
             -DCMAKE_CXX_COMPILER=clang++-19 \
             -DCMAKE_C_COMPILER=clang-19 \
@@ -222,11 +220,10 @@ jobs:
           call "C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Auxiliary/Build/vcvarsall.bat" x64
           cd ../boost-root/libs/lexical_cast
           rm -rf build_module
-          mkdir build_module
-          cd build_module
-          cmake -DBOOST_USE_MODULES=1 -DCMAKE_CXX_STANDARD=23 -DCMAKE_EXPERIMENTAL_CXX_IMPORT_STD=0e5b6991-d74f-4b3d-a41c-cf096e0b2508 -G Ninja ../test/cmake_subdir_test/
-          cmake --build .
-          ctest --no-tests=error -V
+          cmake -DBOOST_USE_MODULES=1 -DCMAKE_CXX_STANDARD=23 -DCMAKE_EXPERIMENTAL_CXX_IMPORT_STD=0e5b6991-d74f-4b3d-a41c-cf096e0b2508 -G Ninja -B build_module -S test/cmake_subdir_test/
+          cmake --build build_module
+          tree build_module /f
+          ctest --test-dir build_module --no-tests=error -V
 
       - name: Run modules tests without 'import std;'
         if: ${{matrix.toolset == 'msvc-14.3'}}
@@ -236,11 +233,10 @@ jobs:
           call "C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Auxiliary/Build/vcvarsall.bat" x64
           cd ../boost-root/libs/lexical_cast
           rm -rf build_module
-          mkdir build_module
-          cd build_module
-          cmake -DBOOST_USE_MODULES=1 -DCMAKE_CXX_STANDARD=20 -G Ninja ../test/cmake_subdir_test/
-          cmake --build .
-          ctest --no-tests=error -V
+          cmake -DBOOST_USE_MODULES=1 -DCMAKE_CXX_STANDARD=20 -G Ninja -B build_module -S test/cmake_subdir_test/
+          cmake --build build_module
+          tree build_module /f
+          ctest --test-dir build_module --no-tests=error -V
 
       - name: Run tests
         shell: cmd
diff --git a/test/cmake_subdir_test/CMakeLists.txt b/test/cmake_subdir_test/CMakeLists.txt
index fb3951f..d1f60e3 100644
--- a/test/cmake_subdir_test/CMakeLists.txt
+++ b/test/cmake_subdir_test/CMakeLists.txt
@@ -33,7 +33,6 @@ exception
 filesystem
 function
 function_types
-functional
 fusion
 integer
 intrusive
@@ -50,7 +49,6 @@ range
 regex
 scope
 smart_ptr
-static_assert
 system
 test
 tokenizer
@@ -70,6 +68,7 @@ foreach(dep IN LISTS deps)
 endforeach()
 
 enable_testing()
+set(BUILD_TESTING ON)
 add_subdirectory(../../ boostorg/lexical_cast)
 
 if (BOOST_USE_MODULES)