diff --git a/Modules/Filtering/ImageLabel/wrapping/itkScanlineFilterCommon.wrap b/Modules/Filtering/ImageLabel/wrapping/itkScanlineFilterCommon.wrap
index bbe2157971e..fc19e1ae719 100644
--- a/Modules/Filtering/ImageLabel/wrapping/itkScanlineFilterCommon.wrap
+++ b/Modules/Filtering/ImageLabel/wrapping/itkScanlineFilterCommon.wrap
@@ -1,6 +1,6 @@
 itk_wrap_class("itk::ScanlineFilterCommon" POINTER)
 itk_wrap_image_filter("${WRAP_ITK_REAL}" 2 2+)
-unique(to_types "UL;${WRAP_ITK_INT}")
+unique(to_types "UL;${ITKM_IT};${WRAP_ITK_INT}")
 itk_wrap_image_filter_combinations("${WRAP_ITK_INT}" "${to_types}" 2+)
 # wrap vector to int combinations because ConnectedComponentImageFilter uses them
 itk_wrap_image_filter_combinations("${WRAP_ITK_VECTOR}" "${WRAP_ITK_INT}" 2+)