diff --git a/MVMCore/MVMCore/Categories/NSArray+MFConvenience.h b/MVMCore/MVMCore/Categories/NSArray+MFConvenience.h
index 73a9c89..667c307 100644
--- a/MVMCore/MVMCore/Categories/NSArray+MFConvenience.h
+++ b/MVMCore/MVMCore/Categories/NSArray+MFConvenience.h
@@ -38,6 +38,6 @@
 - (nonnull NSString *)stringAtIndex:(NSUInteger)index;
 
 // Maps this array to a new array of T objects given a conversion block. Objective-C implementation of Swift's map. https://developer.apple.com/documentation/swift/array/2908681-map
-- (nonnull NSArray *) map:(id _Nullable (^_Nonnull)(id _Nonnull obj))mapBlock;
+- (nonnull NSArray *) map:(id _Nonnull (^_Nonnull)(id _Nonnull obj))mapBlock;
 
 @end