diff --git a/utils/utils.py b/utils/utils.py
index 74abd999..93a9ada8 100755
--- a/utils/utils.py
+++ b/utils/utils.py
@@ -848,6 +848,8 @@ def plot_wh_methods():  # from utils.utils import *; plot_wh_methods()
 def plot_images(images, targets, paths=None, fname='images.jpg', names=None, max_size=640, max_subplots=16):
     tl = 3  # line thickness
     tf = max(tl - 1, 1)  # font thickness
+    if os.path.isfile(fname):  # do not overwrite
+        return None
 
     if isinstance(images, torch.Tensor):
         images = images.cpu().numpy()