diff --git a/CMakeExternals/CTK.cmake b/CMakeExternals/CTK.cmake
index ed64006736..3beeddac61 100644
--- a/CMakeExternals/CTK.cmake
+++ b/CMakeExternals/CTK.cmake
@@ -1,100 +1,98 @@
 #-----------------------------------------------------------------------------
 # CTK
 #-----------------------------------------------------------------------------
 
 if(MITK_USE_CTK)
 
   # Sanity checks
   if(DEFINED CTK_DIR AND NOT EXISTS ${CTK_DIR})
     message(FATAL_ERROR "CTK_DIR variable is defined but corresponds to non-existing directory")
   endif()
 
   set(proj CTK)
   set(proj_DEPENDENCIES DCMTK)
   set(CTK_DEPENDS ${proj})
 
   if(NOT DEFINED CTK_DIR)
 
-    set(revision_tag "7210c5bc")
-
     set(ctk_optional_cache_args )
     if(MITK_USE_Python3)
       list(APPEND ctk_optional_cache_args
            -DCTK_LIB_Scripting/Python/Widgets:BOOL=ON
            -DCTK_ENABLE_Python_Wrapping:BOOL=OFF
            -DCTK_APP_ctkSimplePythonShell:BOOL=OFF
            "-DPYTHON_INCLUDE_DIR:PATH=${Python3_INCLUDE_DIRS}"
            "-DPYTHON_LIBRARY:FILEPATH=${Python3_LIBRARY_RELEASE}"
       )
     else()
       list(APPEND ctk_optional_cache_args
            -DCTK_LIB_Scripting/Python/Widgets:BOOL=OFF
            -DCTK_ENABLE_Python_Wrapping:BOOL=OFF
            -DCTK_APP_ctkSimplePythonShell:BOOL=OFF
            -DDCMTK_CMAKE_DEBUG_POSTFIX:STRING=d
       )
     endif()
 
     if(CTEST_USE_LAUNCHERS)
       list(APPEND ctk_optional_cache_args
         "-DCMAKE_PROJECT_${proj}_INCLUDE:FILEPATH=${CMAKE_ROOT}/Modules/CTestUseLaunchers.cmake"
       )
     endif()
 
     FOREACH(type RUNTIME ARCHIVE LIBRARY)
       IF(DEFINED CTK_PLUGIN_${type}_OUTPUT_DIRECTORY)
         LIST(APPEND mitk_optional_cache_args -DCTK_PLUGIN_${type}_OUTPUT_DIRECTORY:PATH=${CTK_PLUGIN_${type}_OUTPUT_DIRECTORY})
       ENDIF()
     ENDFOREACH()
 
     mitk_query_custom_ep_vars()
 
     ExternalProject_Add(${proj}
       LIST_SEPARATOR ${sep}
-      GIT_REPOSITORY https://github.com/commontk/CTK
-      GIT_TAG ${revision_tag}
+      GIT_REPOSITORY https://github.com/MITK/CTK.git
+      GIT_TAG ec816cbb-patched
       UPDATE_COMMAND ""
       INSTALL_COMMAND ""
       CMAKE_GENERATOR ${gen}
       CMAKE_GENERATOR_PLATFORM ${gen_platform}
       CMAKE_ARGS
         ${ep_common_args}
         ${ctk_optional_cache_args}
         # The CTK PluginFramework cannot cope with
         # a non-empty CMAKE_DEBUG_POSTFIX for the plugin
         # libraries yet.
         -DCMAKE_DEBUG_POSTFIX:STRING=
         -DCTK_QT_VERSION:STRING=5
         -DQt5_DIR=${Qt5_DIR}
         -DGIT_EXECUTABLE:FILEPATH=${GIT_EXECUTABLE}
         -DCTK_BUILD_QTDESIGNER_PLUGINS:BOOL=ON
         -DCTK_LIB_CommandLineModules/Backend/LocalProcess:BOOL=ON
         -DCTK_LIB_CommandLineModules/Frontend/QtGui:BOOL=ON
         -DCTK_LIB_PluginFramework:BOOL=ON
         -DCTK_LIB_DICOM/Widgets:BOOL=ON
         -DCTK_LIB_XNAT/Core:BOOL=ON
         -DCTK_PLUGIN_org.commontk.eventadmin:BOOL=ON
         -DCTK_PLUGIN_org.commontk.configadmin:BOOL=ON
         -DCTK_USE_GIT_PROTOCOL:BOOL=OFF
         -DDCMTK_DIR:PATH=${DCMTK_DIR}
         -DPythonQt_URL:STRING=${MITK_THIRDPARTY_DOWNLOAD_PREFIX_URL}/PythonQt_fae23012.tar.gz
         ${${proj}_CUSTOM_CMAKE_ARGS}
       CMAKE_CACHE_ARGS
         ${ep_common_cache_args}
         ${${proj}_CUSTOM_CMAKE_CACHE_ARGS}
       CMAKE_CACHE_DEFAULT_ARGS
         ${ep_common_cache_default_args}
         ${${proj}_CUSTOM_CMAKE_CACHE_DEFAULT_ARGS}
       DEPENDS ${proj_DEPENDENCIES}
      )
 
     ExternalProject_Get_Property(${proj} binary_dir)
     set(CTK_DIR ${binary_dir})
 
   else()
 
     mitkMacroEmptyExternalProject(${proj} "${proj_DEPENDENCIES}")
 
   endif()
 
 endif()