diff --git a/server/gameserver/batchsync.h b/server/gameserver/batchsync.h
index 1d481f6d..304f1a42 100644
--- a/server/gameserver/batchsync.h
+++ b/server/gameserver/batchsync.h
@@ -2,6 +2,11 @@
 
 #include <f8/timer.h>
 
+namespace cs
+{
+    class SMSyncPosition;
+};
+
 struct SyncObject
 {
     int obj_uniid = 0;
@@ -9,6 +14,8 @@ struct SyncObject
     glm::vec3 pos = glm::vec3(0.0f, 0.0f, 0.0f);
     glm::vec3 dir = glm::vec3(0.0f, 0.0f, 0.0f);
     long long last_sync_frameno = 0;
+
+    void FillSMSyncPosition(cs::SMSyncPosition& sync_msg);
 };
 
 class Creature;
diff --git a/server/gameserver/pbutils.cc b/server/gameserver/pbutils.cc
index 38978de2..0eefc6e7 100644
--- a/server/gameserver/pbutils.cc
+++ b/server/gameserver/pbutils.cc
@@ -43,6 +43,7 @@
 #include "stats.h"
 #include "sandtable.h"
 #include "frameeventdata.h"
+#include "batchsync.h"
 
 #include "mt/Param.h"
 #include "mt/Buff.h"
@@ -2142,3 +2143,8 @@ void Room::NotifyNewsTicker(int msg_type, std::vector<std::string> msg_content)
              hum->SendNotifyMsg(notify_msg);
          });
 }
+
+void SyncObject::FillSMSyncPosition(cs::SMSyncPosition& sync_msg)
+{
+
+}