diff --git a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/WebSocket/Message.php b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/WebSocket/Message.php
index ba2ee4d..6cd6229 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/WebSocket/Message.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/DTO/Api/WebSocket/Message.php
@@ -12,7 +12,7 @@ class Message implements ValidableInterface
 {
     public const TYPE_COMMENT = 'comment';
     public const TYPE_POST = 'post';
-    public const TYPE_POST_RECOMMENDATION = 'rec';
+    public const TYPE_POST_COMMENT_RECOMMENDATION = 'rec';
     public const TYPE_COMMENT_RECOMMENDATION = 'ok';
 
     /**
@@ -187,6 +187,17 @@ class Message implements ValidableInterface
                 }
                 break;
 
+            case self::TYPE_POST_COMMENT_RECOMMENDATION;
+                if (
+                    null !== $this->author &&
+                    null !== $this->authorId &&
+                    null !== $this->postId &&
+                    null !== $this->postAuthorId
+                ) {
+                    return true;
+                }
+                break;
+
             case null:
                 throw new \RuntimeException('Message has NULL type.');
                 break;