diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 3e0ebfb56..b554f57c3 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -52,12 +52,7 @@ parameters:
 
 		-
 			message: "#^Only booleans are allowed in a negated boolean, string given\\.$#"
-			count: 3
-			path: src/Server/Helper.php
-
-		-
-			message: "#^Only booleans are allowed in &&, string given on the left side\\.$#"
-			count: 1
+			count: 2
 			path: src/Server/Helper.php
 
 		-
diff --git a/src/Server/Helper.php b/src/Server/Helper.php
index 2e92b43d1..b8f77ee2c 100644
--- a/src/Server/Helper.php
+++ b/src/Server/Helper.php
@@ -277,7 +277,7 @@ static function (RequestError $err) : Error {
                 );
             }
 
-            $doc = $op->queryId && ! $op->query
+            $doc = $op->queryId !== null && $op->query === null
                 ? $this->loadPersistedQuery($config, $op)
                 : $op->query;