diff --git a/tools/experiment.py b/tools/experiment.py
index dec87f42336..abae60a9f40 100644
--- a/tools/experiment.py
+++ b/tools/experiment.py
@@ -725,7 +725,7 @@ def _prepare_run_command(self, command: List[str]) -> bool:
                 output_path = str(self._workspace / "outputs" / "latest_trained_model")
             self.set_arguments_to_cmd(command, "--output", output_path)
         elif cmd_entry == "optimize":
-            if previous_cmd == "export":
+            if previous_cmd == "export":  # execute PTQ. If not, execute QAT
                 file_path = self._find_model_path(previous_cmd)
                 if file_path is None:
                     return False