diff --git a/tests/phpstan/configs/gradual-level6.neon b/tests/phpstan/configs/gradual-level6.neon
index adf4eb0bf..0adcbb4df 100644
--- a/tests/phpstan/configs/gradual-level6.neon
+++ b/tests/phpstan/configs/gradual-level6.neon
@@ -8,5 +8,5 @@ rules:
 	- PHPStan\Rules\Functions\MissingFunctionParameterTypehintRule
 	- PHPStan\Rules\Functions\MissingFunctionReturnTypehintRule
 	- PHPStan\Rules\Methods\MissingMethodParameterTypehintRule
-	#- PHPStan\Rules\Methods\MissingMethodReturnTypehintRule
+	- PHPStan\Rules\Methods\MissingMethodReturnTypehintRule
 	- PHPStan\Rules\Properties\MissingPropertyTypehintRule