diff --git a/src/Component/OpenApiCommon/Generator/Normalizer/NormalizerGenerator.php b/src/Component/OpenApiCommon/Generator/Normalizer/NormalizerGenerator.php
index 534649e75..e37936524 100644
--- a/src/Component/OpenApiCommon/Generator/Normalizer/NormalizerGenerator.php
+++ b/src/Component/OpenApiCommon/Generator/Normalizer/NormalizerGenerator.php
@@ -77,7 +77,7 @@ trait NormalizerGenerator
                         new Expr\FuncCall(new Name('is_object'), [new Arg(new Expr\Variable('data'))]),
                         new Expr\BinaryOp\Identical(
                             new Expr\FuncCall(new Name('get_class'), [new Arg(new Expr\Variable('data'))]),
-                            new Expr\ClassConstFetch(new Name($modelFqdn), new Identifier('class'))
+                            new Expr\ClassConstFetch(new Name\FullyQualified($modelFqdn), new Identifier('class'))
                         )
                     )
                 ),