diff --git a/detect.py b/detect.py
index a2331e23b43e..601d5daf9852 100644
--- a/detect.py
+++ b/detect.py
@@ -244,7 +244,7 @@ def wrap_frozen_graph(gd, inputs, outputs):
 
 def parse_opt():
     parser = argparse.ArgumentParser()
-    parser.add_argument('--weights', nargs='+', type=str, default='yolov5s.pb', help='model.pt path(s)')
+    parser.add_argument('--weights', nargs='+', type=str, default='yolov5s.pt', help='model.pt path(s)')
     parser.add_argument('--source', type=str, default='data/images', help='file/dir/URL/glob, 0 for webcam')
     parser.add_argument('--imgsz', '--img', '--img-size', nargs='+', type=int, default=[640], help='inference size h,w')
     parser.add_argument('--conf-thres', type=float, default=0.25, help='confidence threshold')