diff --git a/ioh/__init__.py b/ioh/__init__.py
index 09cb86e0b..949e9512e 100644
--- a/ioh/__init__.py
+++ b/ioh/__init__.py
@@ -445,7 +445,7 @@ def merge_tmp_folders(self):
             target = root + f"-{idx}"
             idx += 1
 
-        os.rename(root + "-tmp-1", target)
+        os.rename(self.logger_root + "-tmp-1", target)
         self.merge_output_to_single_folder(root + "-tmp", target)
 
     def run(self):