diff --git a/CMakeLists.txt b/CMakeLists.txt
index 05a6b7e..86f451c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,6 +24,7 @@ find_package(Glog)
 find_package(OpenCV REQUIRED)
 find_package(OpenPose REQUIRED)
 find_package(OpenMP)
+find_package(Threads REQUIRED)
 
 if(OPENMP_FOUND)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")