diff --git a/itk-module.cmake b/itk-module.cmake
index 7ffa0c4..894cf01 100644
--- a/itk-module.cmake
+++ b/itk-module.cmake
@@ -10,6 +10,7 @@ itk_module(AnisotropicDiffusionLBR
     ITKIOImageBase
     ITKIOSpatialObjects
     ITKMetaIO
+    ITKIOPNG
     ITKImageGradient
   TEST_DEPENDS
     ITKTestKernel