diff --git a/src/lib/mormot.lib.win7zip.pas b/src/lib/mormot.lib.win7zip.pas
index 315def888..3b6685b58 100644
--- a/src/lib/mormot.lib.win7zip.pas
+++ b/src/lib/mormot.lib.win7zip.pas
@@ -2647,8 +2647,8 @@ procedure T7zWriter.SaveToFile(const DestName: TFileName);
   f: TFileStreamEx;
   existing: boolean;
 begin
-  fFileName := DestName;
   existing := (fUpdateReader <> nil) and (fFileName = DestName);
+  fFileName := DestName;
   f := TFileStreamEx.Create(DestName, fmCreateOrRewrite[existing]);
   try
     SaveToStream(f);
diff --git a/src/mormot.commit.inc b/src/mormot.commit.inc
index 0119d49b7..b51b6399a 100644
--- a/src/mormot.commit.inc
+++ b/src/mormot.commit.inc
@@ -1 +1 @@
-'2.1.5428'
+'2.1.5429'