diff --git a/CMakeExternals/MITKData.cmake b/CMakeExternals/MITKData.cmake
index c9cbbbfa40..e937a1c10d 100644
--- a/CMakeExternals/MITKData.cmake
+++ b/CMakeExternals/MITKData.cmake
@@ -1,33 +1,39 @@
 #-----------------------------------------------------------------------------
 # 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 4fa450c29ebd819419)
+  IF(${proj}_REVISION_TAG)
+    SET(revision_tag ${${proj}_REVISION_TAG})
+  ENDIF()
+
   ExternalProject_Add(${proj}
     GIT_REPOSITORY http://git.mitk.org/MITK-Data.git
-    GIT_TAG "origin/master"
+    GIT_TAG ${revision_tag}
+    UPDATE_COMMAND ""
     CONFIGURE_COMMAND ""
     BUILD_COMMAND ""
     INSTALL_COMMAND ""
     DEPENDS ${proj_DEPENDENCIES}
   )
   
   SET(MITK_DATA_DIR ${ep_source_dir}/${proj})
   
 ELSE()
 
   mitkMacroEmptyExternalProject(${proj} "${proj_DEPENDENCIES}")
   
 ENDIF(BUILD_TESTING)