1 files changed, 2 insertions, 2 deletions
diff --git a/test/cpp/common/secure_auth_context_test.cc b/test/cpp/common/secure_auth_context_test.cc
index 0cc32c1853..7a0530c20a 100644
--- a/test/cpp/common/secure_auth_context_test.cc
+++ b/test/cpp/common/secure_auth_context_test.cc
@@ -42,7 +42,7 @@ TEST_F(SecureAuthContextTest, EmptyContext) {
 }
 
 TEST_F(SecureAuthContextTest, Properties) {
-  grpc_auth_context* ctx = grpc_auth_context_create(NULL);
+  grpc_auth_context* ctx = grpc_auth_context_create(nullptr);
   SecureAuthContext context(ctx, true);
   context.AddProperty("name", "chapi");
   context.AddProperty("name", "chapo");
@@ -60,7 +60,7 @@ TEST_F(SecureAuthContextTest, Properties) {
 }
 
 TEST_F(SecureAuthContextTest, Iterators) {
-  grpc_auth_context* ctx = grpc_auth_context_create(NULL);
+  grpc_auth_context* ctx = grpc_auth_context_create(nullptr);
   SecureAuthContext context(ctx, true);
   context.AddProperty("name", "chapi");
   context.AddProperty("name", "chapo");