diff --git a/index.d.ts b/index.d.ts
index 9d5114d..4b52fbb 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -7,6 +7,7 @@ export interface BlurViewProperties {
     | 'extraDark' | 'regular' | 'prominent';
   blurAmount?: number; // 0 - 100
   style?: ViewStyle;
+  viewRef?: number | null;
 }
 
 export class BlurView extends React.Component<BlurViewProperties, {}> {}