diff --git a/Plugins/org.mitk.gui.qt.diffusionimagingapp/CMakeLists.txt b/Plugins/org.mitk.gui.qt.diffusionimagingapp/CMakeLists.txt
index 96e4c01732..e52334e6f0 100644
--- a/Plugins/org.mitk.gui.qt.diffusionimagingapp/CMakeLists.txt
+++ b/Plugins/org.mitk.gui.qt.diffusionimagingapp/CMakeLists.txt
@@ -1,11 +1,14 @@
 # The project name must correspond to the directory name of your plug-in
 # and must not contain periods.
 project(org_mitk_gui_qt_diffusionimagingapp)
 
 MACRO_CREATE_MITK_CTK_PLUGIN(
   EXPORT_DIRECTIVE DIFFUSIONIMAGING_APP_EXPORT
   EXPORTED_INCLUDE_SUFFIXES src
   MODULE_DEPENDS Qmitk SceneSerialization
   PACKAGE_DEPENDS Qt4|QtWebKit
 )
 
+if(QT_QTWEBKIT_FOUND)
+  add_definitions(-DQT_WEBKIT)
+endif(QT_QTWEBKIT_FOUND)
diff --git a/Plugins/org.mitk.gui.qt.dtiatlasapp/CMakeLists.txt b/Plugins/org.mitk.gui.qt.dtiatlasapp/CMakeLists.txt
index ca9bb7528b..c5b8e00be8 100644
--- a/Plugins/org.mitk.gui.qt.dtiatlasapp/CMakeLists.txt
+++ b/Plugins/org.mitk.gui.qt.dtiatlasapp/CMakeLists.txt
@@ -1,11 +1,14 @@
 # The project name must correspond to the directory name of your plug-in
 # and must not contain periods.
 project(org_mitk_gui_qt_dtiatlasapp)
 
 MACRO_CREATE_MITK_CTK_PLUGIN(
   EXPORT_DIRECTIVE DTIATLAS_APP_EXPORT
   EXPORTED_INCLUDE_SUFFIXES src
   MODULE_DEPENDS Qmitk SceneSerialization
   PACKAGE_DEPENDS Qt4|QtWebKit
 )
 
+if(QT_QTWEBKIT_FOUND)
+  add_definitions(-DQT_WEBKIT)
+endif(QT_QTWEBKIT_FOUND)
diff --git a/Plugins/org.mitk.gui.qt.extapplication/CMakeLists.txt b/Plugins/org.mitk.gui.qt.extapplication/CMakeLists.txt
index 000f5999ca..8ffe39bbf9 100644
--- a/Plugins/org.mitk.gui.qt.extapplication/CMakeLists.txt
+++ b/Plugins/org.mitk.gui.qt.extapplication/CMakeLists.txt
@@ -1,8 +1,11 @@
 project(org_mitk_gui_qt_extapplication)
 
 MACRO_CREATE_MITK_CTK_PLUGIN(
   EXPORT_DIRECTIVE MITK_QT_EXTAPP
   EXPORTED_INCLUDE_SUFFIXES src
   PACKAGE_DEPENDS Qt4|QtWebKit
 )
 
+if(QT_QTWEBKIT_FOUND)
+  add_definitions(-DQT_WEBKIT)
+endif(QT_QTWEBKIT_FOUND)