diff --git a/autospec/tarball.py b/autospec/tarball.py
index 650b8449..973c31d9 100644
--- a/autospec/tarball.py
+++ b/autospec/tarball.py
@@ -219,7 +219,7 @@ def process_autogenerated_source(self, url):
         autogenerated_src = None
         if url:
             src_path = self.check_or_get_file(url, os.path.basename(url))
-            autogenerated_src = Source(url, '../autogenerated', src_path, self.config.default_pattern)
+            autogenerated_src = Source(url, '../autogenerated-tmp', src_path, self.config.default_pattern)
         return autogenerated_src
 
     def print_header(self):
@@ -443,6 +443,8 @@ def process(self, filemanager):
         autogenerated_src = self.process_autogenerated_source(self.autogenerated_tarball)
         # Extract autogenerated source for comparison
         if autogenerated_src:
-            autogenerated_src.extract(os.path.join(self.base_path, 'autogenerated'))
-            call(f"diff -u -r autogenerated/{autogenerated_src.prefix} {main_src.prefix}",
-                 logfile="archive.diff", check=False, cwd=self.base_path)
+            autogenerated_src.extract(os.path.join(self.base_path, 'autogenerated-tmp'))
+            # Move the autogenerated source to a non-version-named directory for consistent diffs
+            call(f"mv autogenerated-tmp/{autogenerated_src.prefix} autogenerated", check=True, cwd=self.base_path)
+            call(f"diff -u -r ../autogenerated ./",
+                 logfile="archive.diff", check=False, cwd=os.path.join(self.base_path, main_src.prefix))