diff --git a/doc/autotools.txt.in b/doc/autotools.txt.in
index 2ef333d..9a8a5fb 100644
--- a/doc/autotools.txt.in
+++ b/doc/autotools.txt.in
@@ -11,10 +11,10 @@ Installation on Linux, Unix and similar
 
 The @PACKAGE_NAME@ uses the GNU Build System to compile and install. If you are
 unfamiliar with it, please have a look at :file:`INSTALL`. If you can not find
-it, you are probably working bleeding edge in the repository.  Run the
-following command in :file:`@PACKAGE_TARNAME@` to get the missing standard
-auxiliary files::
-    
+it, you are probably working bleeding edge in the repository. To generate the
+missing standard auxiliary files you need to additionally install `libtool` and
+`pkg-config` and run the following command in :file:`@PACKAGE_TARNAME@`::
+
     autoreconf --verbose --install
 
 To configure (:command:`configure --help` lists possible options), build and