diff --git a/nets/yolo_training.py b/nets/yolo_training.py
index b84b4d0515c8500290f5061f9ad874f592cb9f99..263c45b4da982d125b3587470d3a77f244ba7adb 100644
--- a/nets/yolo_training.py
+++ b/nets/yolo_training.py
@@ -372,7 +372,7 @@ class Generator(object):
                 targets.append(np.array(y,dtype = np.float32))
                 if len(targets) == self.batch_size:
                     tmp_inp = np.array(inputs)
-                    tmp_targets = np.array(targets)
+                    tmp_targets = targets
                     inputs = []
                     targets = []
                     yield tmp_inp, tmp_targets