diff --git a/debug/accuracy_tools/grad_tool/grad_pt/grad_monitor.py b/debug/accuracy_tools/grad_tool/grad_pt/grad_monitor.py
index 19c5b32bf8bdb94373bf73784a9e608cc4fbfd83..59d0775a8fb0f365e3b548a4330130be4cef45b0 100644
--- a/debug/accuracy_tools/grad_tool/grad_pt/grad_monitor.py
+++ b/debug/accuracy_tools/grad_tool/grad_pt/grad_monitor.py
@@ -73,8 +73,8 @@ class PtGradientMonitor(BaseMonitor):
                     bounds=self._bounds)
                 output_lines.append(grad_info)
                 self._level_adp.save_grad_direction(param_name, grad,
-                                                    f'{self._output_path}/rank_{self._rank}/step_{self._step}')
-            output_path = os.path.join(self._output_path, f"rank_{getattr(self, '_rank')}",
+                                                    f'{self._output_path}/rank{self._rank}/step{self._step}')
+            output_path = os.path.join(self._output_path, f"rank{getattr(self, '_rank')}",
                                        f"grad_summary_{self._step}.csv")
             write_csv(output_path, output_lines,
                       GradStatCsv.generate_csv_header(level=self._level_adp, bounds=self._bounds))