@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im>
+ * Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
  *
  * All rights reserved.
  *
  * This file is part of ObjFW. It may be distributed under the terms of the
  * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
@@ -480,12 +480,17 @@
 		    attributes.fileGroupOwnerAccountID];
 		entry.owner = attributes.fileOwnerAccountName;
 		entry.group = attributes.fileGroupOwnerAccountName;
 #endif
 
-		if ([type isEqual: OFFileTypeDirectory])
+		if ([type isEqual: OFFileTypeDirectory]) {
 			entry.compressionMethod = @"-lhd-";
+
+			if (![entry.fileName hasSuffix: @"/"])
+				entry.fileName = [entry.fileName
+				    stringByAppendingString: @"/"];
+		}
 
 		output = [_archive streamForWritingEntry: entry];
 
 		if ([type isEqual: OFFileTypeRegular]) {
 			unsigned long long written = 0;