diff --git a/server/gameserver/CMakeLists.txt b/server/gameserver/CMakeLists.txt
index 89cb63c5..69a19b60 100644
--- a/server/gameserver/CMakeLists.txt
+++ b/server/gameserver/CMakeLists.txt
@@ -18,8 +18,8 @@ else()
   message(LIB_DIR: ${LIB_DIR} )
 endif()
 
-set(CMAKE_CXX_FLAGS_RELEASE "-O3 -Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID} -DNDEBUG -DNEWGS")
-set(CMAKE_CXX_FLAGS_DEBUG "-Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID} -DDEBUG -DNEWGS -DPVE")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3 -Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID} -DNDEBUG -DNEWGS -DPVE -DATTR")
+set(CMAKE_CXX_FLAGS_DEBUG "-Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID} -DDEBUG -DNEWGS -DPVE -DATTR")
 
 include_directories(
   AFTER
diff --git a/server/gameserver/attr.cc b/server/gameserver/attr.cc
new file mode 100644
index 00000000..422726bb
--- /dev/null
+++ b/server/gameserver/attr.cc
@@ -0,0 +1,3 @@
+#include "precompile.h"
+
+#include "attr.h"
diff --git a/server/gameserver/attr.h b/server/gameserver/attr.h
new file mode 100644
index 00000000..efa53514
--- /dev/null
+++ b/server/gameserver/attr.h
@@ -0,0 +1,9 @@
+#pragma once
+
+#include "weakptr.h"
+
+class Attr
+{
+ private:
+    CreatureWeakPtr owner_;
+};