diff --git a/Query/DisMaxQuery.php b/Query/DisMaxQuery.php
index f457f7d45ac5d534e49abf0301d92b3ba45351cc..db8b316fac2a7f0c2479f8d74c5ec69aea4b085e 100644
--- a/Query/DisMaxQuery.php
+++ b/Query/DisMaxQuery.php
@@ -59,6 +59,7 @@ class DisMaxQuery implements BuilderInterface
      */
     public function toArray()
     {
+        $query = [];
         foreach ($this->queries as $type) {
             $query['queries'][] = [$type->getType() => $type->toArray()];
         }