diff --git a/paddle/fluid/lite/kernels/arm/dropout_compute.cc b/paddle/fluid/lite/kernels/arm/dropout_compute.cc
index 99b3e859747c9518821c70cf68a9170d949f33f3..49e998536a4ec92a7e804d680ff71f1c00990bc8 100644
--- a/paddle/fluid/lite/kernels/arm/dropout_compute.cc
+++ b/paddle/fluid/lite/kernels/arm/dropout_compute.cc
@@ -43,4 +43,5 @@ REGISTER_LITE_KERNEL(dropout, kARM, kFloat, kNCHW,
                      paddle::lite::kernels::arm::DropoutCompute, def)
     .BindInput("X", {LiteType::GetTensorTy(TARGET(kARM))})
     .BindOutput("Out", {LiteType::GetTensorTy(TARGET(kARM))})
+    .BindOutput("Mask", {LiteType::GetTensorTy(TARGET(kARM))})
     .Finalize();