diff --git a/onnxruntime/core/providers/nnapi/nnapi_builtin/builders/model_builder.cc b/onnxruntime/core/providers/nnapi/nnapi_builtin/builders/model_builder.cc
index c2c993aa50..4f34d338e4 100644
--- a/onnxruntime/core/providers/nnapi/nnapi_builtin/builders/model_builder.cc
+++ b/onnxruntime/core/providers/nnapi/nnapi_builtin/builders/model_builder.cc
@@ -29,9 +29,7 @@ namespace nnapi {
 
 ModelBuilder::ModelBuilder(const GraphViewer& graph_viewer, const NnApi& nnapi_handle,
                            gsl::span<const DeviceWrapper> nnapi_target_devices)
-    : nnapi_(nnapi_handle), graph_viewer_(graph_viewer), nnapi_model_{std::make_unique<Model>(nnapi_handle)},
-      shaper_{graph_viewer}, nnapi_target_devices_(nnapi_target_devices),
-      nnapi_effective_feature_level_(GetNNAPIEffectiveFeatureLevel(nnapi_handle, nnapi_target_devices_)) {
+    : nnapi_(nnapi_handle), graph_viewer_(graph_viewer), nnapi_model_{std::make_unique<Model>(nnapi_handle)}, shaper_{graph_viewer}, nnapi_target_devices_(nnapi_target_devices), nnapi_effective_feature_level_(GetNNAPIEffectiveFeatureLevel(nnapi_handle, nnapi_target_devices_)) {
   nnapi_model_->nnapi_effective_feature_level_ = nnapi_effective_feature_level_;
 }
 
@@ -586,7 +584,8 @@ Status ModelBuilder::Compile(std::unique_ptr<Model>& model) {
       }
     }
 
-    LOGS_DEFAULT(VERBOSE) << total_ops << " Ops [" << fb_op_alloc_detail << "] out of " << num_nnapi_ops_ << " are falling-back to nnapi-reference, and ["
+    LOGS_DEFAULT(VERBOSE) << total_ops << " Ops [" << fb_op_alloc_detail << "] out of " << num_nnapi_ops_
+                          << " are falling-back to " << kNnapiCpuDeviceName << ", and ["
                           << nm_op_alloc_detail << "] are running in accelerators.";
   }
 #endif
diff --git a/onnxruntime/core/providers/nnapi/nnapi_builtin/nnapi_api_helper.h b/onnxruntime/core/providers/nnapi/nnapi_builtin/nnapi_api_helper.h
index 4501d56ad1..13847f4fc6 100644
--- a/onnxruntime/core/providers/nnapi/nnapi_builtin/nnapi_api_helper.h
+++ b/onnxruntime/core/providers/nnapi/nnapi_builtin/nnapi_api_helper.h
@@ -33,7 +33,7 @@ enum class TargetDeviceOption : int8_t {
   CPU_ONLY,      // use CPU only
 };
 
-const char* const nnapi_cpu = ("nnapi-reference");
+const char* const kNnapiCpuDeviceName = ("nnapi-reference");
 
 /**  How feature level works for NNAPI. refer to https://developer.android.com/ndk/reference/group/neural-networks
  *