diff --git a/ppdet/modeling/heads/ppyoloe_contrast_head.py b/ppdet/modeling/heads/ppyoloe_contrast_head.py
index 4f80ea9c71ff658bd81700db4e8fe6ed3d4ef591..df61194edc22c24355f4cf0e02397a67eee59578 100644
--- a/ppdet/modeling/heads/ppyoloe_contrast_head.py
+++ b/ppdet/modeling/heads/ppyoloe_contrast_head.py
@@ -27,6 +27,7 @@ from ppdet.modeling.layers import MultiClassNMS
 from ppdet.modeling.heads.ppyoloe_head import PPYOLOEHead
 __all__ = ['PPYOLOEContrastHead']
 
+
 @register
 class PPYOLOEContrastHead(PPYOLOEHead):
     __shared__ = [
@@ -60,33 +61,18 @@ class PPYOLOEContrastHead(PPYOLOEHead):
                  exclude_nms=False,
                  exclude_post_process=False,
                  use_shared_conv=True):
-        super().__init__(in_channels,
-                 num_classes,
-                 act,
-                 fpn_strides,
-                 grid_cell_scale,
-                 grid_cell_offset,
-                 reg_max,
-                 reg_range,
-                 static_assigner_epoch,
-                 use_varifocal_loss,
-                 static_assigner,
-                 assigner,
-                 nms,
-                 eval_size,
-                 loss_weight,
-                 trt,
-                 exclude_nms,
-                 exclude_post_process,
-                 use_shared_conv)
-                 
+        super().__init__(in_channels, num_classes, act, fpn_strides,
+                         grid_cell_scale, grid_cell_offset, reg_max, reg_range,
+                         static_assigner_epoch, use_varifocal_loss,
+                         static_assigner, assigner, nms, eval_size, loss_weight,
+                         trt, exclude_nms, exclude_post_process,
+                         use_shared_conv)
+
         assert len(in_channels) > 0, "len(in_channels) should > 0"
         self.contrast_loss = contrast_loss
         self.contrast_encoder = nn.LayerList()
         for in_c in self.in_channels:
-            self.contrast_encoder.append(
-                nn.Conv2D(
-                    in_c, 128, 3, padding=1))
+            self.contrast_encoder.append(nn.Conv2D(in_c, 128, 3, padding=1))
         self._init_contrast_encoder()
 
     def _init_contrast_encoder(self):
@@ -95,7 +81,7 @@ class PPYOLOEContrastHead(PPYOLOEHead):
             constant_(en_.weight)
             constant_(en_.bias, bias_en)
 
-    def forward_train(self, feats, targets):
+    def forward_train(self, feats, targets, aux_pred=None):
         anchors, anchor_points, num_anchors_list, stride_tensor = \
             generate_anchors_for_grid_cell(
                 feats, self.fpn_strides, self.grid_cell_scale,
@@ -108,9 +94,10 @@ class PPYOLOEContrastHead(PPYOLOEHead):
             cls_logit = self.pred_cls[i](self.stem_cls[i](feat, avg_feat) +
                                          feat)
             reg_distri = self.pred_reg[i](self.stem_reg[i](feat, avg_feat))
-            contrast_logit = self.contrast_encoder[i](self.stem_cls[i](feat, avg_feat) +
-                                         feat)
-            contrast_encoder_list.append(contrast_logit.flatten(2).transpose([0, 2, 1]))
+            contrast_logit = self.contrast_encoder[i](self.stem_cls[i](
+                feat, avg_feat) + feat)
+            contrast_encoder_list.append(
+                contrast_logit.flatten(2).transpose([0, 2, 1]))
             # cls and reg
             cls_score = F.sigmoid(cls_logit)
             cls_score_list.append(cls_score.flatten(2).transpose([0, 2, 1]))
@@ -120,8 +107,8 @@ class PPYOLOEContrastHead(PPYOLOEHead):
         contrast_encoder_list = paddle.concat(contrast_encoder_list, axis=1)
 
         return self.get_loss([
-            cls_score_list, reg_distri_list, contrast_encoder_list, anchors, anchor_points,
-            num_anchors_list, stride_tensor
+            cls_score_list, reg_distri_list, contrast_encoder_list, anchors,
+            anchor_points, num_anchors_list, stride_tensor
         ], targets)
 
     def get_loss(self, head_outs, gt_meta):