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 13847f4fc6..0c83388ba8 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 kNnapiCpuDeviceName = ("nnapi-reference");
+constexpr const char* const kNnapiCpuDeviceName = "nnapi-reference";
 
 /**  How feature level works for NNAPI. refer to https://developer.android.com/ndk/reference/group/neural-networks
  *