diff --git a/CMakeLists.txt b/CMakeLists.txt
index a72acb8..d180df5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,6 +11,8 @@ endif()
 
 if(UNIX AND NOT APPLE)
     # If Linux, add rt and pthread
+    set(rt_LIBRARIES rt)
+    set(pthread_LIBRARIES pthread)
     catkin_package(
         LIBRARIES ${PROJECT_NAME}
         INCLUDE_DIRS include