diff --git a/Documentation/Makefile b/Documentation/Makefile
index 9e7f2a78800e3f06b78f644b7cd6a4b632900a8a..b6d1d8824f39557495ed479c0823f66f792b51f6 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -37,6 +37,7 @@ INSTALL?=install
 DOC_REF = origin/man
 
 -include ../config.mak.autogen
+-include ../config.mak
 
 #
 # Please note that there is a minor bug in asciidoc.