diff -ur devhelp-0.12-orig/src/dh-base.c devhelp-0.12/src/dh-base.c
--- devhelp-0.12-orig/src/dh-base.c	2006-07-31 09:16:14.870687000 +0200
+++ devhelp-0.12/src/dh-base.c	2006-07-31 09:21:10.481162000 +0200
@@ -230,6 +230,10 @@
 	base_add_books(base, dir);
 	g_free(dir);
 
+	dir = g_build_filename(data_dir, "doc" , "gtk-doc", "html", NULL);
+	base_add_books(base, dir);
+	g_free(dir);
+
 	dir = g_build_filename(data_dir, "devhelp", "books", NULL);
 	base_add_books(base, dir);
 	g_free(dir);