diff --git a/resources/functionMap.php b/resources/functionMap.php
index fade07b20c..69266f315d 100644
--- a/resources/functionMap.php
+++ b/resources/functionMap.php
@@ -11661,7 +11661,7 @@
 'stream_filter_prepend' => ['resource|false', 'stream'=>'resource', 'filtername'=>'string', 'read_write='=>'int', 'params='=>'mixed'],
 'stream_filter_register' => ['bool', 'filtername'=>'string', 'classname'=>'string'],
 'stream_filter_remove' => ['bool', 'stream_filter'=>'resource'],
-'stream_get_contents' => ['string|false', 'source'=>'resource', 'maxlen='=>'int', 'offset='=>'int'],
+'stream_get_contents' => ['__benevolent<string|false>', 'source'=>'resource', 'maxlen='=>'int', 'offset='=>'int'],
 'stream_get_filters' => ['list<string>'],
 'stream_get_line' => ['string|false', 'stream'=>'resource', 'maxlen'=>'int', 'ending='=>'string'],
 'stream_get_meta_data' => ['array{timed_out:bool,blocked:bool,eof:bool,unread_bytes:int,stream_type:string,wrapper_type:string,wrapper_data:mixed,mode:string,seekable:bool,uri?:string,mediatype?:string,base64?:bool}', 'fp'=>'resource'],
diff --git a/src/Type/Php/StreamGetContentsFunctionReturnTypeExtension.php b/src/Type/Php/StreamGetContentsFunctionReturnTypeExtension.php
deleted file mode 100644
index 791f0d85ab..0000000000
--- a/src/Type/Php/StreamGetContentsFunctionReturnTypeExtension.php
+++ /dev/null
@@ -1,41 +0,0 @@
-<?php declare(strict_types = 1);
-
-namespace PHPStan\Type\Php;
-
-use PhpParser\Node\Expr\FuncCall;
-use PHPStan\Analyser\Scope;
-use PHPStan\DependencyInjection\AutowiredService;
-use PHPStan\Reflection\FunctionReflection;
-use PHPStan\Reflection\ParametersAcceptorSelector;
-use PHPStan\Type\Constant\ConstantBooleanType;
-use PHPStan\Type\DynamicFunctionReturnTypeExtension;
-use PHPStan\Type\Type;
-use PHPStan\Type\TypeCombinator;
-use function count;
-
-#[AutowiredService]
-final class StreamGetContentsFunctionReturnTypeExtension implements DynamicFunctionReturnTypeExtension
-{
-
-	public function isFunctionSupported(FunctionReflection $functionReflection): bool
-	{
-		return $functionReflection->getName() === 'stream_get_contents';
-	}
-
-	public function getTypeFromFunctionCall(FunctionReflection $functionReflection, FuncCall $functionCall, Scope $scope): ?Type
-	{
-		if (count($functionCall->getArgs()) >= 3) {
-			return null;
-		}
-
-		// stream_get_contents() does not return FALSE unless an invalid offset is provided.
-		$returnType = ParametersAcceptorSelector::selectFromArgs(
-			$scope,
-			$functionCall->getArgs(),
-			$functionReflection->getVariants(),
-		)->getReturnType();
-
-		return TypeCombinator::remove($returnType, new ConstantBooleanType(false));
-	}
-
-}
diff --git a/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php b/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php
index d423d80dbb..bf135b42a6 100644
--- a/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php
+++ b/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php
@@ -3615,12 +3615,7 @@ public function testBug3396(): void
 		$this->checkUnionTypes = true;
 		$this->checkExplicitMixed = false;
 
-		$this->analyse([__DIR__ . '/data/bug-3396.php'], [
-			[
-				'Parameter #1 $s of method Bug3396\HelloWorld::takesString() expects string, string|false given.',
-				18,
-			],
-		]);
+		$this->analyse([__DIR__ . '/data/bug-3396.php'], []);
 	}
 
 }