diff --git a/src/operators/gru_unit_op.cpp b/src/operators/gru_unit_op.cpp
index 056026c5b9fb359de378ae2d63d13c0fac16e367..38ddd217943fd63ce457b62a8c695ba0fa684b8d 100644
--- a/src/operators/gru_unit_op.cpp
+++ b/src/operators/gru_unit_op.cpp
@@ -67,4 +67,4 @@ REGISTER_OPERATOR_CPU(gru_unit, ops::GruUnitOp);
 #ifdef PADDLE_MOBILE_CL
 #endif
 
-#endif
\ No newline at end of file
+#endif
diff --git a/src/operators/gru_unit_op.h b/src/operators/gru_unit_op.h
index c9be667906b4800d0b91f3a9a92925be2ea3ea29..4188662d05e79a97fa2f0dba62303391ae8e0d70 100644
--- a/src/operators/gru_unit_op.h
+++ b/src/operators/gru_unit_op.h
@@ -40,4 +40,4 @@ class GruUnitOp : public framework::OperatorWithKernel<
 }  // namespace operators
 }  // namespace paddle_mobile
 
-#endif
\ No newline at end of file
+#endif
diff --git a/src/operators/kernel/central-arm-func/gru_unit_arm_func.h b/src/operators/kernel/central-arm-func/gru_unit_arm_func.h
index 599b9b46ceb50c3d3d4bd3e9be666823882efb5b..af97ef750723996084a8130cc180e829a39a4aac 100644
--- a/src/operators/kernel/central-arm-func/gru_unit_arm_func.h
+++ b/src/operators/kernel/central-arm-func/gru_unit_arm_func.h
@@ -47,7 +47,7 @@ void GruUnitCompute(const GruUnitParam<CPU>& param) {
   gru_value.state_weight =
       const_cast<P*>(weight_data + 2 * frame_size * frame_size);
   gru_value.output_value = hidden->data<P>();
-  gru_value.prev_out_value = gru_value.output_value;
+  gru_value.prev_out_value = hidden_prev->data<P>();
   gru_value.gate_value = gate->data<P>();
   gru_value.reset_output_value = reset_hidden_prev->data<P>();
   auto active_node = math::GetActivationType(param.Activation());
@@ -59,4 +59,4 @@ void GruUnitCompute(const GruUnitParam<CPU>& param) {
 }  // namespace operators
 }  // namespace paddle_mobile
 
-#endif
\ No newline at end of file
+#endif
diff --git a/src/operators/kernel/gru_unit_kernel.h b/src/operators/kernel/gru_unit_kernel.h
index 53dfa234a79e4fe53e22c034c509ddc59130ce98..bda17cd20504d057e4a824e6ac046cf35d240d9d 100644
--- a/src/operators/kernel/gru_unit_kernel.h
+++ b/src/operators/kernel/gru_unit_kernel.h
@@ -32,4 +32,4 @@ class GruUnitKernel
 }  // namespace operators
 }  // namespace paddle_mobile
 
-#endif
\ No newline at end of file
+#endif