diff --git a/src/UI/CMakeLists.txt b/src/UI/CMakeLists.txt
index 5b5b8cc18..c41123318 100644
--- a/src/UI/CMakeLists.txt
+++ b/src/UI/CMakeLists.txt
@@ -4,9 +4,13 @@ project (MCServer)
 
 include_directories ("${PROJECT_SOURCE_DIR}/../")
 
-file(GLOB SOURCE
-    "*.cpp"
-    "*.h"
-)
+SET (SRCS
+	SlotArea.cpp
+	Window.cpp)
 
-add_library(UI ${SOURCE})
+SET (HDRS
+	SlotArea.h
+	Window.h
+	WindowOwner.h)
+
+add_library(UI ${SRCS} ${HDRS})