diff --git a/component/sed/buildout.cfg b/component/sed/buildout.cfg
index 50a4e64c00f577505aadca92fab3da281391dcba..b66a88be495248314b5dd87bdc147e980a525177 100644
--- a/component/sed/buildout.cfg
+++ b/component/sed/buildout.cfg
@@ -1,4 +1,6 @@
 [buildout]
+extends = ../gnu-config/buildout.cfg
+
 parts =
   sed
 
@@ -7,5 +9,6 @@ recipe = slapos.recipe.cmmi
 shared = true
 url = ftp://ftp.gnu.org/gnu/sed/sed-4.2.1.tar.gz
 md5sum = f0fd4d7da574d4707e442285fd2d3b86
+pre-configure = cp -f ${gnu-config:location}/config.sub ${gnu-config:location}/config.guess build-aux/
 environment =
   LDFLAGS =-Wl,--as-needed