diff --git a/docs/book/wscript b/docs/book/wscript
index d71699ab..8d06f3b9 100644
--- a/docs/book/wscript
+++ b/docs/book/wscript
@@ -91,7 +91,7 @@ def options(opt):
 def configure(conf):
 	conf.find_program('a2x', var='A2X')
 	conf.find_program('asciidoc', var='ADOC')
-	conf.find_program('dia', var='DIA')
+	#conf.find_program('dia', var='DIA')
 	conf.find_program('convert', var='CONVERT')
 	conf.find_program('source-highlight', var='SOURCE_HIGHLIGHT')
 	conf.find_program('dot')