diff --git a/src/scripts/eastern_kingdoms/burning_steppes/blackrock_depths/blackrock_depths.h b/src/scripts/eastern_kingdoms/burning_steppes/blackrock_depths/blackrock_depths.h
index 4d087252ef1..b44a498344f 100644
--- a/src/scripts/eastern_kingdoms/burning_steppes/blackrock_depths/blackrock_depths.h
+++ b/src/scripts/eastern_kingdoms/burning_steppes/blackrock_depths/blackrock_depths.h
@@ -143,6 +143,7 @@ enum
     NPC_SHADOWFORGE_CITIZEN    = 8902,
     NPC_GRIMSTONE              = 10096,
     NPC_THELDREN               = 16059,
+    NPC_THELDREN_KILL_CREDIT   = 16166,
 
     GO_ARENA1                  = 161525,
     GO_ARENA2                  = 161522,
diff --git a/src/scripts/eastern_kingdoms/burning_steppes/blackrock_depths/instance_blackrock_depths.cpp b/src/scripts/eastern_kingdoms/burning_steppes/blackrock_depths/instance_blackrock_depths.cpp
index 5c1ad78e127..1a1d1c9d171 100644
--- a/src/scripts/eastern_kingdoms/burning_steppes/blackrock_depths/instance_blackrock_depths.cpp
+++ b/src/scripts/eastern_kingdoms/burning_steppes/blackrock_depths/instance_blackrock_depths.cpp
@@ -893,6 +893,14 @@ struct instance_blackrock_depths : ScriptedInstance
             case DATA_THELDREN:
                 if (uiData == DONE)
                 {
+                    // Give kill credit for quest The Challenge (9015)
+                    Map::PlayerList const& players = instance->GetPlayers();
+                    for (const auto& itr : players)
+                    {
+                        if (Player* pPlayer = itr.getSource())
+                            pPlayer->KilledMonsterCredit(NPC_THELDREN_KILL_CREDIT);
+                    }
+
                     // Spawn "Arena Spoils" chest with sick loot
                     DoRespawnGameObject(m_uiArenaSpoilsGUID);
                 }