diff --git a/CMake/mitkSetupBlueBerry.cmake b/CMake/mitkSetupBlueBerry.cmake
index d2dc5922d2..8b1a0efe63 100644
--- a/CMake/mitkSetupBlueBerry.cmake
+++ b/CMake/mitkSetupBlueBerry.cmake
@@ -1,35 +1,33 @@
 set(BLUEBERRY_INSTALL_RPATH_RELATIVE ${MITK_INSTALL_RPATH_RELATIVE}
     CACHE BOOL "Use relative rpath entries when installing" FORCE)
 
 set(BLUEBERRY_USE_QT ${MITK_USE_QT} CACHE BOOL "Use the Qt GUI toolkit" FORCE)
 mark_as_advanced(BLUEBERRY_USE_QT)
     
 # Clear the cache variables containing plugin base directories
 set(MITK_MODULES_PLUGIN_SOURCE_DIRS "" CACHE INTERNAL "List of base plugin source directories" FORCE)
 set(MITK_MODULES_PLUGIN_OUTPUT_DIRS "" CACHE INTERNAL "List of base plugin output directories" FORCE)
-set(MITK_CORE_PLUGIN_OUTPUT_DIRS "" CACHE INTERNAL "List of base plugin output directories" FORCE)
-set(MITK_CORE_PLUGIN_SOURCE_DIRS "" CACHE INTERNAL "List of base plugin source directories" FORCE)
 
 set(mbilog_DIR "${mbilog_BINARY_DIR}")
 
 if(MITK_BUILD_ALL_PLUGINS)
   set(BLUEBERRY_BUILD_ALL_PLUGINS ON)
 endif()
 
 add_subdirectory(BlueBerry)
 
 set(BlueBerry_DIR ${CMAKE_CURRENT_BINARY_DIR}/BlueBerry
     CACHE PATH "The directory containing a CMake configuration file for BlueBerry" FORCE)
 include(${BlueBerry_DIR}/BlueBerryConfig.cmake)
 include(mitkMacroCreatePlugin)
 include(mitkMacroCreateCTKPlugin)
 
 SET(CTK_PLUGIN_LIBRARIES ${CTK_PLUGIN_LIBRARIES} CACHE INTERNAL "CTK plugins" FORCE)
 
 # Extract all library names starting with org_mitk_
 MACRO(GetMyTargetLibraries all_target_libraries varname)
   SET(re_ctkplugin "^org_mitk_[a-zA-Z0-9_]+$")
   SET(_tmp_list)
   LIST(APPEND _tmp_list ${all_target_libraries})
   ctkMacroListFilter(_tmp_list re_ctkplugin OUTPUT_VARIABLE ${varname})
 ENDMACRO()