diff --git a/wrapping/itkMetamorphosisImageRegistrationMethodv4.wrap b/wrapping/itkMetamorphosisImageRegistrationMethodv4.wrap
index cad39f2..1e6259d 100644
--- a/wrapping/itkMetamorphosisImageRegistrationMethodv4.wrap
+++ b/wrapping/itkMetamorphosisImageRegistrationMethodv4.wrap
@@ -1,3 +1,3 @@
 itk_wrap_class("itk::MetamorphosisImageRegistrationMethodv4" POINTER)
-  itk_wrap_image_filter("${WRAP_ITK_SCALAR}" 2)
+  itk_wrap_image_filter("${WRAP_ITK_REAL}" 2)
 itk_end_wrap_class()