diff --git a/Bolts/Common/BFTask.m b/Bolts/Common/BFTask.m
index c53d36e701325d467bb04014c28795f1715ddcb0..0d6bd4cda232c3004d02d8224cb979cb657e6f6d 100644
--- a/Bolts/Common/BFTask.m
+++ b/Bolts/Common/BFTask.m
@@ -56,7 +56,7 @@ NSString *const BFTaskMultipleErrorsUserInfoKey = @"errors";
     return self;
 }
 
-- (instancetype)initWithResult:(id)result {
+- (instancetype)initWithResult:(nullable id)result {
     self = [super init];
     if (!self) return self;