diff --git a/libsrc/core/CMakeLists.txt b/libsrc/core/CMakeLists.txt
index a62c030c..de4b33c0 100644
--- a/libsrc/core/CMakeLists.txt
+++ b/libsrc/core/CMakeLists.txt
@@ -39,7 +39,7 @@ if(USE_PYTHON)
   target_include_directories(ngcore PRIVATE ${PYTHON_INCLUDE_DIRS})
   target_link_libraries(ngcore PRIVATE ${PYTHON_LIBRARIES})
 endif(USE_PYTHON)
-target_link_libraries(ngcore PUBLIC netgen_mpi)
+target_link_libraries(ngcore PUBLIC netgen_mpi PRIVATE ${CMAKE_THREAD_LIBS_INIT})
 
 install(FILES ngcore.hpp archive.hpp type_traits.hpp version.hpp ngcore_api.hpp logging.hpp
   exception.hpp symboltable.hpp paje_trace.hpp utils.hpp profiler.hpp mpi_wrapper.hpp