diff --git a/src/game/Server/WorldSession.h b/src/game/Server/WorldSession.h
index 06a7fe199ee..14ca0f31e77 100644
--- a/src/game/Server/WorldSession.h
+++ b/src/game/Server/WorldSession.h
@@ -385,7 +385,7 @@ class WorldSession
 
         void SendTradeStatus(const TradeStatusInfo& status) const;
         void SendUpdateTrade(bool trader_state = true) const;
-        void SendCancelTrade(TradeStatus status);
+        void SendCancelTrade(TradeStatus status) const;
 
         void SendPetitionQueryOpcode(ObjectGuid petitionguid) const;
 
diff --git a/src/game/Trade/TradeHandler.cpp b/src/game/Trade/TradeHandler.cpp
index 4a6e9c776fa..91810998e40 100644
--- a/src/game/Trade/TradeHandler.cpp
+++ b/src/game/Trade/TradeHandler.cpp
@@ -528,7 +528,7 @@ void WorldSession::HandleBeginTradeOpcode(WorldPacket& /*recvPacket*/)
     SendTradeStatus(info);
 }
 
-void WorldSession::SendCancelTrade(TradeStatus status)
+void WorldSession::SendCancelTrade(TradeStatus status) const
 {
     if (m_playerRecentlyLogout)
         return;