diff --git a/ppdet/modeling/architectures/blazeface.py b/ppdet/modeling/architectures/blazeface.py
index 245a43835fcda15ef541ae7c42f2163042ade411..62230cc5f316b0a33fcfbcd720a02eed1f907eaa 100644
--- a/ppdet/modeling/architectures/blazeface.py
+++ b/ppdet/modeling/architectures/blazeface.py
@@ -96,7 +96,6 @@ class BlazeFace(object):
                 overlap_threshold=0.35,
                 neg_overlap=0.35)
             loss = fluid.layers.reduce_sum(loss)
-            loss.persistable = True
             return {'loss': loss}
         else:
             pred = self.output_decoder(locs, confs, box, box_var)
diff --git a/ppdet/modeling/architectures/faceboxes.py b/ppdet/modeling/architectures/faceboxes.py
index f5b120ecef430973d95053742cea282fbb729f34..b55354902238bb960e6ebf9605ec42c130e27b38 100644
--- a/ppdet/modeling/architectures/faceboxes.py
+++ b/ppdet/modeling/architectures/faceboxes.py
@@ -87,7 +87,6 @@ class FaceBoxes(object):
                 overlap_threshold=0.35,
                 neg_overlap=0.35)
             loss = fluid.layers.reduce_sum(loss)
-            loss.persistable = True
             return {'loss': loss}
         else:
             pred = self.output_decoder(locs, confs, box, box_var)