diff --git a/src/Analyser/MutatingScope.php b/src/Analyser/MutatingScope.php
index 3fb33fdfcb..edfc170062 100644
--- a/src/Analyser/MutatingScope.php
+++ b/src/Analyser/MutatingScope.php
@@ -2475,8 +2475,8 @@ public function enterClassMethod(
 		bool $isDeprecated,
 		bool $isInternal,
 		bool $isFinal,
-		?bool $isPure,
-		bool $acceptsNamedArguments,
+		?bool $isPure = null,
+		bool $acceptsNamedArguments = true,
 	): self
 	{
 		if (!$this->isInClass()) {
@@ -2578,8 +2578,8 @@ public function enterFunction(
 		bool $isDeprecated,
 		bool $isInternal,
 		bool $isFinal,
-		?bool $isPure,
-		bool $acceptsNamedArguments,
+		?bool $isPure = null,
+		bool $acceptsNamedArguments = true,
 	): self
 	{
 		return $this->enterFunctionLike(