diff --git a/CMakeLists.txt b/CMakeLists.txt
index ddc46a9..68c6a98 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,6 +11,7 @@ catkin_package(
 
 include_directories(include ${catkin_INCLUDE_DIRS})
 
+link_directories("/opt/ros/melodic/lib")
 link_directories("/opt/ros/groovy/lib")
 link_directories("/opt/ros/indigo/lib")
 link_directories("/opt/ros/hydro/lib")