diff -up kdeedu-4.6.4/marble/CMakeLists.txt.doc kdeedu-4.6.4/marble/CMakeLists.txt
--- kdeedu-4.6.4/marble/CMakeLists.txt.doc	2011-04-14 23:45:18.000000000 +0200
+++ kdeedu-4.6.4/marble/CMakeLists.txt	2011-06-09 12:35:14.000000000 +0200
@@ -293,6 +293,7 @@ include_directories(
 )
 ####################################################
 # Descend into subdirectories
+add_subdirectory(doc)
 add_subdirectory(src)
 add_subdirectory(data)
 
diff -up kdeedu-4.6.4/marble/doc/CMakeLists.txt.doc kdeedu-4.6.4/marble/doc/CMakeLists.txt
--- kdeedu-4.6.4/marble/doc/CMakeLists.txt.doc	2011-06-09 12:51:10.000000000 +0200
+++ kdeedu-4.6.4/marble/doc/CMakeLists.txt	2011-06-09 12:52:04.000000000 +0200
@@ -1,4 +1,4 @@
 ########### install files ###############
 #
 
-kde4_create_handbook(index.docbook INSTALL_DESTINATION ${HTML_INSTALL_DIR}/en)
+kde4_create_handbook(index.docbook INSTALL_DESTINATION ${HTML_INSTALL_DIR}/en SUBDIR marble)