diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 7f5f23a1e..b55ef4d94 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -39,6 +39,7 @@ set(lib_SRCS
 		logging/CLogger.cpp
 
 		mapping/CCampaignHandler.cpp
+		mapping/CDrawRoadsOperation.cpp
 		mapping/CMap.cpp
 		mapping/CMapEditManager.cpp
 		mapping/CMapInfo.cpp