diff --git a/include/onnxruntime/core/session/onnxruntime_c_api.h b/include/onnxruntime/core/session/onnxruntime_c_api.h
index c5a42d66cf..a9193c2fbf 100644
--- a/include/onnxruntime/core/session/onnxruntime_c_api.h
+++ b/include/onnxruntime/core/session/onnxruntime_c_api.h
@@ -217,7 +217,7 @@ struct OrtApiBase {
 };
 typedef struct OrtApiBase OrtApiBase;
 
-ORT_EXPORT const OrtApiBase* ORT_API_CALL OrtGetApiBase() NO_EXCEPTION;
+ORT_EXPORT const OrtApiBase* ORT_API_CALL OrtGetApiBase(void) NO_EXCEPTION;
 
 struct OrtApi {
   /**
diff --git a/onnxruntime/core/session/onnxruntime_c_api.cc b/onnxruntime/core/session/onnxruntime_c_api.cc
index 983889f93a..0bc47b77bb 100644
--- a/onnxruntime/core/session/onnxruntime_c_api.cc
+++ b/onnxruntime/core/session/onnxruntime_c_api.cc
@@ -1463,7 +1463,7 @@ ORT_API(const char*, OrtApis::GetVersionString) {
   return ORT_VERSION;
 }
 
-const OrtApiBase* ORT_API_CALL OrtGetApiBase() NO_EXCEPTION {
+const OrtApiBase* ORT_API_CALL OrtGetApiBase(void) NO_EXCEPTION {
   return &ort_api_base;
 }