1 files changed, 4 insertions, 4 deletions
diff --git a/src/core/lib/security/util/json_util.cc b/src/core/lib/security/util/json_util.cc
index 365bd1537c..fef1a1f51d 100644
--- a/src/core/lib/security/util/json_util.cc
+++ b/src/core/lib/security/util/json_util.cc
@@ -26,12 +26,12 @@
 const char* grpc_json_get_string_property(const grpc_json* json,
                                           const char* prop_name) {
   grpc_json* child;
-  for (child = json->child; child != NULL; child = child->next) {
+  for (child = json->child; child != nullptr; child = child->next) {
     if (strcmp(child->key, prop_name) == 0) break;
   }
-  if (child == NULL || child->type != GRPC_JSON_STRING) {
+  if (child == nullptr || child->type != GRPC_JSON_STRING) {
     gpr_log(GPR_ERROR, "Invalid or missing %s property.", prop_name);
-    return NULL;
+    return nullptr;
   }
   return child->value;
 }
@@ -40,7 +40,7 @@ bool grpc_copy_json_string_property(const grpc_json* json,
                                     const char* prop_name,
                                     char** copied_value) {
   const char* prop_value = grpc_json_get_string_property(json, prop_name);
-  if (prop_value == NULL) return false;
+  if (prop_value == nullptr) return false;
   *copied_value = gpr_strdup(prop_value);
   return true;
 }