diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0a41ff3..3c10495 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -82,14 +82,9 @@ endif()
 
 if(KYNEMA_DRIVER_ENABLE_CUDA)
   include(kynema-driver-utils)
-  # Host-only sources that must not be compiled as CUDA (i.e. must bypass
-  # nvcc/cudafe++) — see set_cuda_build_properties() for details.
-  set(_kynema_host_only_srcs
-    "${CMAKE_SOURCE_DIR}/src/MemoryUsage.cpp"
-  )
   set(kyntargets "${KYNEMA_DRIVER_LIB_NAME};${KYNEMA_DRIVER_EXE_NAME}")
   foreach(tgt IN LISTS kyntargets)
-    set_cuda_build_properties(${tgt} ${_kynema_host_only_srcs})
+    set_cuda_build_properties(${tgt})
   endforeach()
 endif()
 
diff --git a/cmake/kynema-driver-utils.cmake b/cmake/kynema-driver-utils.cmake
index ee42c90..3712400 100644
--- a/cmake/kynema-driver-utils.cmake
+++ b/cmake/kynema-driver-utils.cmake
@@ -1,20 +1,6 @@
 function(set_cuda_build_properties target)
-  # Optional additional arguments: a list of host-only source file paths that
-  # must not be compiled as CUDA. These files are explicitly kept as LANGUAGE CXX
-  # so they bypass nvcc/cudafe++, which crashes on GCC 13 (libstdc++ 13) headers
-  # such as stl_construct.h when using nvcc 12.8.1 (cudafe++ internal assertion
-  # failure at lexical.c in find_allocated_name_reference).
-  set(_host_only_srcs ${ARGN})
-
   get_target_property(_tgt_src ${target} SOURCES)
   list(FILTER _tgt_src INCLUDE REGEX "\\.cpp")
-
-  # Remove host-only sources from the CUDA list and mark them as plain CXX.
-  if(_host_only_srcs)
-    list(REMOVE_ITEM _tgt_src ${_host_only_srcs})
-    set_source_files_properties(${_host_only_srcs} PROPERTIES LANGUAGE CXX)
-  endif()
-
   set_source_files_properties(${_tgt_src} PROPERTIES LANGUAGE CUDA)
   set_target_properties(${target} PROPERTIES CUDA_ARCHITECTURES "${KYNEMA_DRIVER_CUDA_ARCH}")
   set_target_properties(${target} PROPERTIES CUDA_RESOLVE_DEVICE_SYMBOLS ON)