diff --git a/src/operators/feed_op.h b/src/operators/feed_op.h
index 3ca2b5668d1c9c34f341e0fe487819501a0ebe8d..286b0076ef2b9ad806f141c4d6124f1233dc78dc 100644
--- a/src/operators/feed_op.h
+++ b/src/operators/feed_op.h
@@ -47,7 +47,7 @@ class FeedOp : public framework::OperatorBase<DeviceType> {
     fpga::BypassArgs args;
     args.convert_type = fpga::DATA_FP32_TO_FP16;
     args.layout_type = fpga::LAYOUT_CHW_TO_HWC;
-    args.image.address = nullptr;
+    args.image.address = (void *)input_ptr;
     args.image.channels = input->dims()[1];
     args.image.height = input->dims()[2];
     args.image.width = input->dims()[3];