diff --git a/profiler/cli/compare_cli.py b/profiler/cli/compare_cli.py
index 02470859ce2f3a6da70bda718cfee5bae8a5063d..b25fa039daa5f1ca4bd2b6c2d9becee8bc9abc2d 100644
--- a/profiler/cli/compare_cli.py
+++ b/profiler/cli/compare_cli.py
@@ -38,7 +38,7 @@ from compare_backend.comparison_generator import ComparisonGenerator
 @click.option('--enable_communication_compare', is_flag=True)
 @click.option('--output_path', '-o', 'output_path', type=click.Path())
 @click.option('--max_kernel_num', 'max_kernel_num', type=int, help="The number of kernels per torch op is limited.")
-@click.option('--op_name_map', type=ast.literal_eval, default={},
+@click.option('--op_name_map', type=ast.literal_eval, default='{}',
               help="The mapping of operator names equivalent to GPUs and NPUs in the form of dictionaries.",
               required=False)
 @click.option('--use_input_shape', is_flag=True)