diff --git a/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.m b/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.m
index c9e8aed55b7423ae4dfc2843f07ca9d2221cef3e..73e4a9a9a16af7b54cffe8d19bb3e36dc5c625af 100644
--- a/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.m
+++ b/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.m
@@ -25,7 +25,7 @@
 
         @"Steps" : [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount],
         @"DateOfBirth" : [HKObjectType characteristicTypeForIdentifier:HKCharacteristicTypeIdentifierDateOfBirth],
-        @"Sex" : [HKObjectType characteristicTypeForIdentifier:HKCharacteristicTypeIdentifierBiologicalSex],
+        @"BiologicalSex" : [HKObjectType characteristicTypeForIdentifier:HKCharacteristicTypeIdentifierBiologicalSex],
     };
     return readPerms;
 }