diff --git a/paddle/fluid/operators/lrn_mkldnn_op.cc b/paddle/fluid/operators/lrn_mkldnn_op.cc
index c96dd63516f364b5ce3979a31850c5a18d7e813e..4e4f977fcc742856b877ef0b7f9a3cc9879aefce 100644
--- a/paddle/fluid/operators/lrn_mkldnn_op.cc
+++ b/paddle/fluid/operators/lrn_mkldnn_op.cc
@@ -50,7 +50,7 @@ template <typename T>
 class LRNMKLDNNOpKernel : public paddle::framework::OpKernel<T> {
  public:
   void Compute(const paddle::framework::ExecutionContext& ctx) const override {
-    bool is_float_type = std::is_same<T, float>::value;
+    const bool is_float_type = std::is_same<T, float>::value;
     PADDLE_ENFORCE(is_float_type, "MKLDNN LRN must use float data.");
     PADDLE_ENFORCE(paddle::platform::is_cpu_place(ctx.GetPlace()),
                    "MKLDNN LRN must use CPUPlace.");
@@ -132,8 +132,8 @@ template <typename T>
 class LRNMKLDNNGradOpKernel : public paddle::framework::OpKernel<T> {
  public:
   void Compute(const paddle::framework::ExecutionContext& ctx) const override {
-    PADDLE_ENFORCE(std::is_same<T, float>::value,
-                   "MKLDNN LRN must use float data.");
+    const bool is_float_type = std::is_same<T, float>::value;
+    PADDLE_ENFORCE(is_float_type, "MKLDNN LRN must use float data.");
     PADDLE_ENFORCE(paddle::platform::is_cpu_place(ctx.GetPlace()),
                    "MKLDNN LRN must use CPUPlace.");
     PADDLE_ENFORCE(