diff --git a/CMakeLists.txt b/CMakeLists.txt
index a89332c8..0aeb82f0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -116,7 +116,6 @@ find_package ( Boost REQUIRED
   log
   thread
   date_time
-  system
   )
 
 find_package (Protobuf CONFIG)