@@ -246,11 +246,11 @@
 		void *pool = objc_autoreleasePoolPush();
 		OFString *fileName = entry.fileName;
 		OFString *outFileName, *directory;
 		OFStream *stream;
 		OFFile *output;
-		uint64_t written = 0, size = entry.uncompressedSize;
+		unsigned long long written = 0, size = entry.uncompressedSize;
 		int8_t percent = -1, newPercent;
 
 		if (!all && ![files containsObject: fileName])
 			continue;
 
@@ -437,15 +437,15 @@
 			    @"file", fileName)];
 
 		entry = [OFMutableZIPArchiveEntry entryWithFileName: fileName];
 
 		size = (isDirectory ? 0 : attributes.fileSize);
-		if (size > INT64_MAX)
+		if (size < 0 || size > ULLONG_MAX)
 			@throw [OFOutOfRangeException exception];
 
-		entry.compressedSize = (int64_t)size;
-		entry.uncompressedSize = (int64_t)size;
+		entry.compressedSize = size;
+		entry.uncompressedSize = size;
 
 		entry.compressionMethod =
 		    OFZIPArchiveEntryCompressionMethodNone;
 		entry.modificationDate = attributes.fileModificationDate;