@@ -513,11 +513,11 @@
 	unsigned long *_Nullable _mutationsPtr;
 	size_t _position;
 }
 
 - initWithArray: (OFArray *)data
-   mutationsPtr: (unsigned long *_Nullable)mutationsPtr;
+   mutationsPtr: (nullable unsigned long *)mutationsPtr;
 @end
 
 OF_ASSUME_NONNULL_END
 
 #import "OFMutableArray.h"