diff --git a/CHANGELOG.md b/CHANGELOG.md
index 993777dd..783fb880 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 1.15.1
+* fixed Error parsing JSON @1:9: No such field
+
 ## 1.15.0
 * added `$grpc_config` array for customize gRPC behavior
 
diff --git a/src/Traits/RequestTrait.php b/src/Traits/RequestTrait.php
index 312dd487..bca7eb0b 100644
--- a/src/Traits/RequestTrait.php
+++ b/src/Traits/RequestTrait.php
@@ -238,7 +238,7 @@ protected function processResponse($service, $method, $response, $resultClass)
                     $this->logger()->debug('YDB: Received API response [' . $resultClass . '].', json_decode($jsonResult, true));
 
                     $result = new $resultClass;
-                    $result->mergeFromJsonString($jsonResult);
+                    $result->mergeFromJsonString($jsonResult, true);
                 }
             }