diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -114,6 +114,10 @@
 CHECK_TYPE_SIZE("long long" LONG_LONG)
 SET(LEMON_HAVE_LONG_LONG ${HAVE_LONG_LONG})
 
+INCLUDE(FindThreads)
+SET(LEMON_USE_PTHREAD ${CMAKE_USE_PTHREADS_INIT})
+SET(LEMON_USE_WIN32_THREADS ${CMAKE_USE_WIN32_THREADS_INIT})
+
 ENABLE_TESTING()
 
 IF(${CMAKE_BUILD_TYPE} STREQUAL "Maintainer")