diff --git a/CMakeExternals/MITKData.cmake b/CMakeExternals/MITKData.cmake
index c6c1503a92..5eedb42547 100644
--- a/CMakeExternals/MITKData.cmake
+++ b/CMakeExternals/MITKData.cmake
@@ -1,37 +1,37 @@
 #-----------------------------------------------------------------------------
 # MITK Data
 #-----------------------------------------------------------------------------
 
 # Sanity checks
 if(DEFINED MITK_DATA_DIR AND NOT EXISTS ${MITK_DATA_DIR})
   message(FATAL_ERROR "MITK_DATA_DIR variable is defined but corresponds to non-existing directory")
 endif()
 
 set(proj MITK-Data)
 set(proj_DEPENDENCIES)
 set(MITK-Data_DEPENDS ${proj})
 
 if(BUILD_TESTING)
 
   set(revision_tag da5dd4ff) # first 8 characters of hash-tag
 #                  ^^^^^^^^  these are just to check correct length of hash part
 
   ExternalProject_Add(${proj}
     SOURCE_DIR ${proj}
     GIT_REPOSITORY https://phabricator.mitk.org/source/mitkdata.git
     GIT_TAG ${revision_tag}
 #   URL ${MITK_THIRDPARTY_DOWNLOAD_PREFIX_URL}/mitk-data_${revision_tag}.tar.gz
-    UPDATE_COMMAND ""
+#   UPDATE_COMMAND ""
     CONFIGURE_COMMAND ""
     BUILD_COMMAND ""
     INSTALL_COMMAND ""
     DEPENDS ${proj_DEPENDENCIES}
   )
 
   set(MITK_DATA_DIR ${CMAKE_CURRENT_BINARY_DIR}/${proj})
 
 else()
 
   mitkMacroEmptyExternalProject(${proj} "${proj_DEPENDENCIES}")
 
 endif(BUILD_TESTING)