--- ../luxrays/samples/benchsimple/CMakeLists.txt.orig
+++ ../luxrays/samples/benchsimple/CMakeLists.txt
@@ -19,8 +19,10 @@
 #   LuxRays website: http://www.luxrender.net                             #
 ###########################################################################
 
+find_package(Threads)
+
 include_directories(${LuxRays_INCLUDE_DIR})
 link_directories (${LuxRays_LIB_DIR})
 
 add_executable(benchsimple benchsimple.cpp)
-target_link_libraries(benchsimple luxrays)
+target_link_libraries(benchsimple luxrays ${PYTHON_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})