diff --git a/src/definitions.ts b/src/definitions.ts
index 7236fe6..61c47e4 100644
--- a/src/definitions.ts
+++ b/src/definitions.ts
@@ -30,4 +30,6 @@ export interface CheckPermissionResult {
   denied?: boolean;
   asked?: boolean;
   neverAsked?: boolean;
+  restricted?: boolean; // ios only
+  unknown?: boolean; // ios only
 }