diff --git a/config/cmake/scripts/HDF5config.cmake b/config/cmake/scripts/HDF5config.cmake
index 3c1271f722..8262829d09 100644
--- a/config/cmake/scripts/HDF5config.cmake
+++ b/config/cmake/scripts/HDF5config.cmake
@@ -177,7 +177,7 @@ if (NOT DEFINED HPC)
     endif ()
   endif ()
 else ()
-  set (CTEST_SITE "HPC.XXXX")
+  set (CTEST_SITE "${SITE_OS_NAME}")
   set (CTEST_CMAKE_GENERATOR "Unix Makefiles")
   include (${CTEST_SOURCE_DIRECTORY}/config/cmake/scripts/HPC/${HPC}-HDF5options.cmake)
 endif ()