diff -up marble-15.08.0/src/plugins/render/opencachingcom/CMakeLists.txt.opencachingcom_Qt5WebKitWidgets marble-15.08.0/src/plugins/render/opencachingcom/CMakeLists.txt
--- marble-15.08.0/src/plugins/render/opencachingcom/CMakeLists.txt.opencachingcom_Qt5WebKitWidgets	2015-08-30 06:39:21.724572245 -0500
+++ marble-15.08.0/src/plugins/render/opencachingcom/CMakeLists.txt	2015-08-30 06:40:13.147903128 -0500
@@ -6,6 +6,8 @@ INCLUDE_DIRECTORIES(
 )
 if( QT4BUILD )
   INCLUDE(${QT_USE_FILE})
+else()
+  INCLUDE_DIRECTORIES(${Qt5WebKitWidgets_INCLUDE_DIRS})
 endif()
 
 SET( my_SRCS