diff --git a/sohstationviewer/view/db_config/db_config_dialog.py b/sohstationviewer/view/db_config/db_config_dialog.py
index 32aedbdc72bd7656304b698a44a350ce870769a6..22ebf089865448252127999ed7ee4072f444a36e 100755
--- a/sohstationviewer/view/db_config/db_config_dialog.py
+++ b/sohstationviewer/view/db_config/db_config_dialog.py
@@ -635,10 +635,6 @@ class UiDBInfoDialog(OneWindowAtATimeDialog):
             # Primary key is always the first item in a row
             backup_rows = [r for r in self.backup_database_rows
                            if r[0] == curr_row[0]]
-            if self.need_data_type_choice:
-                # data type is one of primary keys
-                backup_rows = [r for r in backup_rows
-                               if r[-1] == curr_row[-1]]
             if backup_rows:
                 # reset function available when there's backup row
                 backup_row = backup_rows[0]