diff --git a/src/modules/metadata/Metadata.constants.ts b/src/modules/metadata/Metadata.constants.ts
index 96783ebf..e2f350c0 100644
--- a/src/modules/metadata/Metadata.constants.ts
+++ b/src/modules/metadata/Metadata.constants.ts
@@ -55,6 +55,7 @@ const APP_METADATA_OBJECT: Record<AppMetadataKeys, undefined> = {
     progressBarType: undefined,
     progressBarSize: undefined,
     progressBarPosition: undefined,
+    progressBarPositionAutoVertical: undefined,
     readingMode: undefined,
     pageScaleMode: undefined,
     shouldOffsetDoubleSpreads: undefined,
diff --git a/src/modules/reader/constants/ReaderSettings.constants.tsx b/src/modules/reader/constants/ReaderSettings.constants.tsx
index 72523b5d..1c900484 100644
--- a/src/modules/reader/constants/ReaderSettings.constants.tsx
+++ b/src/modules/reader/constants/ReaderSettings.constants.tsx
@@ -18,6 +18,7 @@ import {
     IReaderSettings,
     IReaderSettingsGlobal,
     ProgressBarPosition,
+    ProgressBarPositionAutoVertical,
     ProgressBarType,
     ReaderBackgroundColor,
     ReaderExitMode,
@@ -74,7 +75,7 @@ export const DEFAULT_READER_SETTINGS: IReaderSettings = {
     progressBarType: ProgressBarType.STANDARD,
     progressBarSize: 4,
     progressBarPosition: ProgressBarPosition.BOTTOM,
-    progressBarPositionAutoVertical: ProgressBarPosition.RIGHT,
+    progressBarPositionAutoVertical: ProgressBarPositionAutoVertical.RIGHT,
     pageScaleMode: ReaderPageScaleMode.ORIGINAL,
     shouldStretchPage: false,
     shouldOffsetDoubleSpreads: false,