diff --git a/Modules/Core/ImageAdaptors/test/itkComplexConjugateImageAdaptorTest.cxx b/Modules/Core/ImageAdaptors/test/itkComplexConjugateImageAdaptorTest.cxx
index 9f1da4db14b..f31179f42db 100644
--- a/Modules/Core/ImageAdaptors/test/itkComplexConjugateImageAdaptorTest.cxx
+++ b/Modules/Core/ImageAdaptors/test/itkComplexConjugateImageAdaptorTest.cxx
@@ -44,8 +44,6 @@ itkComplexConjugateImageAdaptorTest(int, char *[])
     iter.Set(pixel);
   }
 
-  image->FillBuffer(PixelType(2.0, -3.7));
-
   // Create adaptor.
   auto adaptor = AdaptorType::New();
   adaptor->SetImage(image);