diff --git a/buildout/software-profiles/kumo.cfg b/buildout/software-profiles/kumo.cfg
index d8c9baf0e45eaf5a7649d5b2babd54b039f74604..2041de87e03d822a6ca631d1d66197ade35d2633 100644
--- a/buildout/software-profiles/kumo.cfg
+++ b/buildout/software-profiles/kumo.cfg
@@ -1,5 +1,8 @@
 [buildout]
-extends = ../software-profiles/tokyocabinet.cfg
+extends =
+  ../software-profiles/tokyocabinet.cfg
+  ../software-profiles/messagepack.cfg
+
 parts = kumo
 
 [kumo]