diff --git a/opening-hdf5/src/CMakeLists.txt b/opening-hdf5/src/CMakeLists.txt
index 07d1489..e1a4067 100644
--- a/opening-hdf5/src/CMakeLists.txt
+++ b/opening-hdf5/src/CMakeLists.txt
@@ -4,6 +4,10 @@ project (ReadHDF5)
 set(CMAKE_CXX_STANDARD 23)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+# Force use of libc++ for mdspan support
+set(CMAKE_CXX_COMPILER "clang++")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++ ")
+
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 find_package(netCDF REQUIRED)