diff --git a/itk_common.cmake b/itk_common.cmake
index d97d0413585..ff2f979d8f6 100644
--- a/itk_common.cmake
+++ b/itk_common.cmake
@@ -352,6 +352,7 @@ BUILDNAME:STRING=${CTEST_BUILD_NAME}
 CTEST_USE_LAUNCHERS:BOOL=${CTEST_USE_LAUNCHERS}
 DART_TESTING_TIMEOUT:STRING=${CTEST_TEST_TIMEOUT}
 ExternalData_OBJECT_STORES:STRING=${ExternalData_OBJECT_STORES}
+MAXIMUM_NUMBER_OF_HEADERS:STRING=35
 ${cache_build_type}
 ${cache_make_program}
 ${dashboard_cache}