diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
deleted file mode 100644
index 6d95c99f..00000000
--- a/phpstan-baseline.neon
+++ /dev/null
@@ -1,7 +0,0 @@
-parameters:
-	ignoreErrors:
-		-
-			message: "#^Instanceof between Doctrine\\\\ORM\\\\Query\\\\AST\\\\ConditionalExpression and Doctrine\\\\ORM\\\\Query\\\\AST\\\\ConditionalPrimary will always evaluate to false\\.$#"
-			count: 1
-			path: src/Knp/Component/Pager/Event/Subscriber/Filtration/Doctrine/ORM/Query/WhereWalker.php
-
diff --git a/phpstan.neon b/phpstan.neon
index 3f2c8766..91e64530 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -2,5 +2,3 @@ parameters:
     level: 5
     paths:
         - src
-includes:
-    - phpstan-baseline.neon
diff --git a/src/Knp/Component/Pager/Event/Subscriber/Sortable/Doctrine/ORM/Query/OrderByWalker.php b/src/Knp/Component/Pager/Event/Subscriber/Sortable/Doctrine/ORM/Query/OrderByWalker.php
index a0e06f61..e8508090 100644
--- a/src/Knp/Component/Pager/Event/Subscriber/Sortable/Doctrine/ORM/Query/OrderByWalker.php
+++ b/src/Knp/Component/Pager/Event/Subscriber/Sortable/Doctrine/ORM/Query/OrderByWalker.php
@@ -34,7 +34,7 @@ class OrderByWalker extends TreeWalkerAdapter
      * Walks down a SelectStatement AST node, modifying it to
      * sort the query like requested by url
      */
-    public function walkSelectStatement(SelectStatement $AST): string
+    public function walkSelectStatement(SelectStatement $AST): void
     {
         $query = $this->_getQuery();
         $fields = (array)$query->getHint(self::HINT_PAGINATOR_SORT_FIELD);
@@ -90,7 +90,5 @@ public function walkSelectStatement(SelectStatement $AST): string
                 $AST->orderByClause = new OrderByClause([$orderByItem]);
             }
         }
-
-        return '';
     }
 }