diff --git a/packages/TypeDeclaration/src/Rector/FunctionLike/ReturnTypeDeclarationRector.php b/packages/TypeDeclaration/src/Rector/FunctionLike/ReturnTypeDeclarationRector.php
index 0da457ee7eb..9f6092daf33 100644
--- a/packages/TypeDeclaration/src/Rector/FunctionLike/ReturnTypeDeclarationRector.php
+++ b/packages/TypeDeclaration/src/Rector/FunctionLike/ReturnTypeDeclarationRector.php
@@ -145,7 +145,7 @@ public function refactor(Node $node): ?Node
                 }
             }
 
-            // nullable aase
+            // nullable case
             if ($currentType instanceof UnionType && $inferedType instanceof UnionType) {
                 if ($inferedType->isSubTypeOf($currentType)->yes()) {
                     return null;