diff --git a/src/game/Opcodes.h b/src/game/Opcodes.h
index 2815dd7f1..45935d453 100644
--- a/src/game/Opcodes.h
+++ b/src/game/Opcodes.h
@@ -1095,7 +1095,7 @@ enum Opcodes
     SMSG_FORCE_DISPLAY_UPDATE                             = 0x1404,
     SMSG_SPELL_CHANCE_RESIST_PUSHBACK                     = 0x1405,
     CMSG_IGNORE_DIMINISHING_RETURNS_CHEAT                 = 0x1406,
-    SMSG_IGNORE_DIMINISHING_RETURNS_CHEAT                 = 0x1407,
+    SMSG_IGNORE_DIMINISHING_RETURNS_CHEAT                 = 0x0125, // 4.3.4 15595
     CMSG_KEEP_ALIVE                                       = 0x0015, // 4.3.4 15595
     SMSG_RAID_READY_CHECK_ERROR                           = 0x1409,
     CMSG_OPT_OUT_OF_LOOT                                  = 0x6B16, // 4.3.4 15595
diff --git a/src/game/Server/Opcodes.cpp b/src/game/Server/Opcodes.cpp
index a5e502ab4..3ebbae269 100644
--- a/src/game/Server/Opcodes.cpp
+++ b/src/game/Server/Opcodes.cpp
@@ -1118,7 +1118,7 @@ void InitializeOpcodes()
     //OPCODE(SMSG_FORCE_DISPLAY_UPDATE,                    STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_ServerSide               );
     //OPCODE(SMSG_SPELL_CHANCE_RESIST_PUSHBACK,            STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_ServerSide               );
     //OPCODE(CMSG_IGNORE_DIMINISHING_RETURNS_CHEAT,        STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_NULL                     );
-    //OPCODE(SMSG_IGNORE_DIMINISHING_RETURNS_CHEAT,        STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_ServerSide               );
+    OPCODE(SMSG_IGNORE_DIMINISHING_RETURNS_CHEAT,        STATUS_UNHANDLED, PROCESS_INPLACE, &WorldSession::Handle_ServerSide);
     OPCODE(CMSG_KEEP_ALIVE,                              STATUS_NEVER,    PROCESS_THREADUNSAFE, &WorldSession::Handle_EarlyProccess            );
     //OPCODE(SMSG_RAID_READY_CHECK_ERROR,                  STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_ServerSide               );
     OPCODE(CMSG_OPT_OUT_OF_LOOT,                         STATUS_AUTHED,   PROCESS_THREADUNSAFE, &WorldSession::HandleOptOutOfLootOpcode        );