diff --git a/component/slapos/buildout.cfg b/component/slapos/buildout.cfg
index d0d3ef31dd0fd8ac4592d8629bb305c4d929879d..c68db207d924baf092f87acc8b5156710186a8e5 100644
--- a/component/slapos/buildout.cfg
+++ b/component/slapos/buildout.cfg
@@ -39,7 +39,7 @@ python = python2.7
 recipe = z3c.recipe.scripts
 python = python2.7
 eggs =
-  M2Crypto
+  ${M2Crypto:egg}
   slapos.libnetworkcache
   zc.buildout
   ${lxml-python:egg}