diff --git a/src/game/ObjectGuid.cpp b/src/game/ObjectGuid.cpp
index 4c476fe2b..a6d7d993c 100644
--- a/src/game/ObjectGuid.cpp
+++ b/src/game/ObjectGuid.cpp
@@ -51,7 +51,7 @@ std::string ObjectGuid::GetString() const
 
 ByteBuffer& operator<< (ByteBuffer& buf, ObjectGuid const& guid)
 {
-    buf.append(guid.GetRawValue());
+    buf << uint64(guid.GetRawValue());
     return buf;
 }
 
diff --git a/src/shared/ByteBuffer.h b/src/shared/ByteBuffer.h
index 26a74fb7e..f44cfb729 100644
--- a/src/shared/ByteBuffer.h
+++ b/src/shared/ByteBuffer.h
@@ -71,12 +71,6 @@ class ByteBuffer
             _rpos = _wpos = 0;
         }
 
-        template <typename T> void append(T value)
-        {
-            EndianConvert(value);
-            append((uint8 *)&value, sizeof(value));
-        }
-
         template <typename T> void put(size_t pos,T value)
         {
             EndianConvert(value);
@@ -491,6 +485,13 @@ class ByteBuffer
             }
             sLog.outDebugInLine("\n");
         }
+    private:
+        // limited for internal use because can "append" any unexpected type (like pointer and etc) with hard detection problem
+        template <typename T> void append(T value)
+        {
+            EndianConvert(value);
+            append((uint8 *)&value, sizeof(value));
+        }
 
     protected:
         size_t _rpos, _wpos;
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index df50737b6..170d7e0e3 100644
--- a/src/shared/revision_nr.h
+++ b/src/shared/revision_nr.h
@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "9549"
+ #define REVISION_NR "9550"
 #endif // __REVISION_NR_H__