diff --git a/src/Analyser/MutatingScope.php b/src/Analyser/MutatingScope.php
index 86d2b293fd..b9bf542f8f 100644
--- a/src/Analyser/MutatingScope.php
+++ b/src/Analyser/MutatingScope.php
@@ -2831,6 +2831,7 @@ public function enterClassMethod(
 			new PhpMethodFromParserNodeReflection(
 				$this->getClassReflection(),
 				$classMethod,
+				$this->getFile(),
 				$templateTypeMap,
 				$this->getRealParameterTypes($classMethod),
 				array_map(static function (Type $type): Type {
@@ -2940,6 +2941,7 @@ public function enterFunction(
 		return $this->enterFunctionLike(
 			new PhpFunctionFromParserNodeReflection(
 				$function,
+				$this->getFile(),
 				$templateTypeMap,
 				$this->getRealParameterTypes($function),
 				array_map(static function (Type $type): Type {
diff --git a/src/Reflection/FunctionReflection.php b/src/Reflection/FunctionReflection.php
index 6520745366..5d4df99aeb 100644
--- a/src/Reflection/FunctionReflection.php
+++ b/src/Reflection/FunctionReflection.php
@@ -11,6 +11,8 @@ interface FunctionReflection
 
 	public function getName(): string;
 
+	public function getFileName(): ?string;
+
 	/**
 	 * @return \PHPStan\Reflection\ParametersAcceptor[]
 	 */
diff --git a/src/Reflection/Native/NativeFunctionReflection.php b/src/Reflection/Native/NativeFunctionReflection.php
index edda6f7c6a..6525a21173 100644
--- a/src/Reflection/Native/NativeFunctionReflection.php
+++ b/src/Reflection/Native/NativeFunctionReflection.php
@@ -46,6 +46,11 @@ public function getName(): string
 		return $this->name;
 	}
 
+	public function getFileName(): ?string
+	{
+		return null;
+	}
+
 	/**
 	 * @return \PHPStan\Reflection\ParametersAcceptor[]
 	 */
diff --git a/src/Reflection/Php/PhpFunctionFromParserNodeReflection.php b/src/Reflection/Php/PhpFunctionFromParserNodeReflection.php
index a41d6eb572..9b3eaf48e2 100644
--- a/src/Reflection/Php/PhpFunctionFromParserNodeReflection.php
+++ b/src/Reflection/Php/PhpFunctionFromParserNodeReflection.php
@@ -19,6 +19,8 @@ class PhpFunctionFromParserNodeReflection implements \PHPStan\Reflection\Functio
 
 	private \PhpParser\Node\FunctionLike $functionLike;
 
+	private string $fileName;
+
 	private \PHPStan\Type\Generic\TemplateTypeMap $templateTypeMap;
 
 	/** @var \PHPStan\Type\Type[] */
@@ -66,6 +68,7 @@ class PhpFunctionFromParserNodeReflection implements \PHPStan\Reflection\Functio
 	 */
 	public function __construct(
 		FunctionLike $functionLike,
+		string $fileName,
 		TemplateTypeMap $templateTypeMap,
 		array $realParameterTypes,
 		array $phpDocParameterTypes,
@@ -81,6 +84,7 @@ public function __construct(
 	)
 	{
 		$this->functionLike = $functionLike;
+		$this->fileName = $fileName;
 		$this->templateTypeMap = $templateTypeMap;
 		$this->realParameterTypes = $realParameterTypes;
 		$this->phpDocParameterTypes = $phpDocParameterTypes;
@@ -100,6 +104,11 @@ protected function getFunctionLike(): FunctionLike
 		return $this->functionLike;
 	}
 
+	public function getFileName(): string
+	{
+		return $this->fileName;
+	}
+
 	public function getName(): string
 	{
 		if ($this->functionLike instanceof ClassMethod) {
diff --git a/src/Reflection/Php/PhpMethodFromParserNodeReflection.php b/src/Reflection/Php/PhpMethodFromParserNodeReflection.php
index a0610af795..d1fdb0ca4f 100644
--- a/src/Reflection/Php/PhpMethodFromParserNodeReflection.php
+++ b/src/Reflection/Php/PhpMethodFromParserNodeReflection.php
@@ -40,6 +40,7 @@ class PhpMethodFromParserNodeReflection extends PhpFunctionFromParserNodeReflect
 	public function __construct(
 		ClassReflection $declaringClass,
 		ClassMethod $classMethod,
+		string $fileName,
 		TemplateTypeMap $templateTypeMap,
 		array $realParameterTypes,
 		array $phpDocParameterTypes,
@@ -79,6 +80,7 @@ public function __construct(
 
 		parent::__construct(
 			$classMethod,
+			$fileName,
 			$templateTypeMap,
 			$realParameterTypes,
 			$phpDocParameterTypes,