diff --git a/src/game/Guild.cpp b/src/game/Guild.cpp
index 41688f8a2..4582a0159 100644
--- a/src/game/Guild.cpp
+++ b/src/game/Guild.cpp
@@ -822,17 +822,23 @@ void Guild::UpdateLogoutTime(uint64 guid)
 }
 
 /**
- * Updates the number of accounts that are in the guild
+ * Return the number of accounts that are in the guild after possible update if required
  * A player may have many characters in the guild, but with the same account
  */
-void Guild::UpdateAccountsNumber()
+uint32 Guild::GetAccountsNumber()
 {
+    // not need recalculation
+    if (m_accountsNumber)
+        return m_accountsNumber;
+
     //We use a set to be sure each element will be unique
     std::set<uint32> accountsIdSet;
     for (MemberList::const_iterator itr = members.begin(); itr != members.end(); ++itr)
         accountsIdSet.insert(itr->second.accountId);
 
     m_accountsNumber = accountsIdSet.size();
+
+    return m_accountsNumber;
 }
 
 // *************************************************
diff --git a/src/game/Guild.h b/src/game/Guild.h
index 7979334d2..6c9e673e7 100644
--- a/src/game/Guild.h
+++ b/src/game/Guild.h
@@ -327,7 +327,7 @@ class Guild
         void SetEmblem(uint32 emblemStyle, uint32 emblemColor, uint32 borderStyle, uint32 borderColor, uint32 backgroundColor);
 
         uint32 GetMemberSize() const { return members.size(); }
-        uint32 GetAccountsNumber() const { return m_accountsNumber; }
+        uint32 GetAccountsNumber();
 
         bool LoadGuildFromDB(QueryResult *guildDataResult);
         bool CheckGuildStructure();
@@ -447,7 +447,7 @@ class Guild
         uint32 m_BorderStyle;
         uint32 m_BorderColor;
         uint32 m_BackgroundColor;
-        uint32 m_accountsNumber;
+        uint32 m_accountsNumber;                            // 0 used as marker for need lazy calculation at request
 
         RankList m_Ranks;
 
@@ -470,7 +470,8 @@ class Guild
         uint64 m_GuildBankMoney;
 
     private:
-        void UpdateAccountsNumber();
+        void UpdateAccountsNumber() { m_accountsNumber = 0;}// mark for lazy calculation at request in GetAccountsNumber
+
         // used only from high level Swap/Move functions
         Item*  GetItem(uint8 TabId, uint8 SlotId);
         uint8  CanStoreItem( uint8 tab, uint8 slot, GuildItemPosCountVec& dest, uint32 count, Item *pItem, bool swap = false) const;
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index a37a0a625..feb1fe611 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 "10284"
+ #define REVISION_NR "10285"
 #endif // __REVISION_NR_H__