diff --git a/slapos/software.cfg b/slapos/software.cfg
index b3226b155c7ae8b6c8fa3bf27fafcb2456530901..7a147a8f513f0b6ee8085793163494621d143c79 100644
--- a/slapos/software.cfg
+++ b/slapos/software.cfg
@@ -1,6 +1,7 @@
 [buildout]
 extensions =
   slapos.tool.rebootstrap
+  slapos.tool.networkcache
   slapos.zcbworkarounds
   mr.developer