diff --git a/Modules/Multilabel/files.cmake b/Modules/Multilabel/files.cmake
index 2337956310..61b61ab602 100644
--- a/Modules/Multilabel/files.cmake
+++ b/Modules/Multilabel/files.cmake
@@ -1,17 +1,18 @@
 set(CPP_FILES
   mitkLabel.cpp
   mitkLabelSet.cpp
   mitkLabelSetImage.cpp
+  mitkLabelSetImageConverter.cpp
   mitkLabelSetImageIO.cpp
   mitkLabelSetImageSerializer.cpp
   mitkLabelSetImageSource.cpp
   mitkLabelSetImageToSurfaceFilter.cpp
   mitkLabelSetImageToSurfaceThreadedFilter.cpp
   mitkLabelSetImageVtkMapper2D.cpp
   mitkMultilabelActivator.cpp
   mitkMultilabelObjectFactory.cpp
 )
 
 set(RESOURCE_FILES
 
 )