diff --git a/profiler/merge_profiling_timeline/main.py b/profiler/merge_profiling_timeline/main.py
index c2b3be9ca160fefede5737ba8e119c653561830d..4e395159172f7259d63bd2ede6b1b67621653fd2 100644
--- a/profiler/merge_profiling_timeline/main.py
+++ b/profiler/merge_profiling_timeline/main.py
@@ -220,11 +220,10 @@ def merge_timeline_events(timeline_file_dict, process_list):
                     event["args"]["name"] = event["args"]["name"] + f"_{rank_id}"
 
             new_events.append(event)
-
-    output_path = os.path.join(args.output, f"msprof_merged_{len(timeline_file_dict)}p.json")
-    with open(output_path, 'w') as f:
+    out_path = f"{args.output}_merged.json"
+    with open(out_path, 'w') as f:
         json.dump(new_events, f)
-    print(f"timeline merged output path: {output_path}")
+    print(f"timeline merged output path: {out_path}")
 
 
 def parse_args():