diff --git a/sat/tools/common/files_utils.py b/sat/tools/common/files_utils.py
index d7c9c067..61096415 100644
--- a/sat/tools/common/files_utils.py
+++ b/sat/tools/common/files_utils.py
@@ -30,6 +30,6 @@ def get_unique_name(path):
     ori_path = path = Path(path)
     idx = 1
     while path.exists():
-        path = ori_path.with_name(ori_path.name  + f"_{idx}")
+        path = ori_path.with_name(f"{ori_path.stem}_{idx}{ori_path.suffix}")
         idx += 1
     return path