diff --git a/src/services/questService.ts b/src/services/questService.ts
index 709e643d..295f9173 100644
--- a/src/services/questService.ts
+++ b/src/services/questService.ts
@@ -63,13 +63,13 @@ export const updateQuestStage = (
         throw new Error(`Progress should always exist when giving keychain triggered items or messages`);
     }
 
-    const questStage = quest.Progress[ChainStage - 1];
+    const questStage = quest.Progress[ChainStage];
 
     // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
     if (!questStage) {
         const questStageIndex = quest.Progress.push(questStageUpdate) - 1;
-        if (questStageIndex !== ChainStage - 1) {
-            throw new Error(`Quest stage index mismatch: ${questStageIndex} !== ${ChainStage - 1}`);
+        if (questStageIndex !== ChainStage) {
+            throw new Error(`Quest stage index mismatch: ${questStageIndex} !== ${ChainStage}`);
         }
         return;
     }