diff --git a/src/services/missionInventoryUpdateService.ts b/src/services/missionInventoryUpdateService.ts
index ba76ee63..55eec4b6 100644
--- a/src/services/missionInventoryUpdateService.ts
+++ b/src/services/missionInventoryUpdateService.ts
@@ -1404,7 +1404,11 @@ function getRandomMissionDrops(
                 rewardManifests = [];
             }
         } else if (RewardInfo.T == 15) {
-            rewardManifests = ["/Lotus/Types/Game/MissionDecks/DuviriEncounterRewards/DuviriKullervoNormalRNGRewards"];
+            rewardManifests = [
+                mission?.Tier == 1
+                    ? "/Lotus/Types/Game/MissionDecks/DuviriEncounterRewards/DuviriKullervoSteelPathRNGRewards"
+                    : "/Lotus/Types/Game/MissionDecks/DuviriEncounterRewards/DuviriKullervoNormalRNGRewards"
+            ];
         } else {
             rewardManifests = region.rewardManifests;
         }