diff --git a/src/QueryError.php b/src/QueryError.php
index f3e2a4c..2e41739 100644
--- a/src/QueryError.php
+++ b/src/QueryError.php
@@ -21,7 +21,7 @@ class QueryError extends \Error
 
     public function __toString(): string
     {
-        if ($this->query == "") {
+        if ($this->query === "") {
             return parent::__toString();
         }