@@ -17,11 +17,11 @@
 #import "OFTarArchiveEntry.h"
 
 OF_ASSUME_NONNULL_BEGIN
 
 @interface OFTarArchiveEntry ()
-- (instancetype)OF_initWithHeader: (char[512])header
+- (instancetype)OF_initWithHeader: (char[_Nonnull 512])header
 			   stream: (OFStream*)stream;
 - (void)OF_skip;
 @end
 
 OF_ASSUME_NONNULL_END