diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 1316801d..f2570128 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -9,6 +9,7 @@ CreateTestDriver(Elastix "${Elastix-Test_LIBRARIES}" "${ElastixTests}")
 itk_add_test(NAME itkElastixRegistrationMethodTest
   COMMAND ElastixTestDriver
   --compareNumberOfPixelsTolerance 25
+  --compareRadiusTolerance 2
   --compare
     ${ITK_TEST_OUTPUT_DIR}/itkElastixRegistrationMethodTestOutput.mha
     DATA{Baseline/itkElastixRegistrationMethodTestOutput.mha}