diff --git a/tools/timeline.py b/tools/timeline.py
index 8cd6353d46f496831cb61c1cdbbd156ca0579fb4..b413bb6fe0505df8fb09fa0759fefb6509b95bc9 100644
--- a/tools/timeline.py
+++ b/tools/timeline.py
@@ -171,7 +171,7 @@ if args.timeline_path:
 
 profile_paths = profile_path.split(',')
 profile_dict = dict()
-if len(profile_path) == 1:
+if len(profile_paths) == 1:
     with open(profile_path, 'r') as f:
         profile_s = f.read()
         profile_pb = profiler_pb2.Profile()