diff --git a/nlsr/debian/control b/nlsr/debian/control
index 773e1b9..6e120fb 100644
--- a/nlsr/debian/control
+++ b/nlsr/debian/control
@@ -9,7 +9,8 @@
  libcrypto++-dev (>= 5.6.1),
  protobuf-compiler (>= 2.4.0),
  libprotobuf-dev (>= 2.4.0),
- libboost-all-dev (>= 1.48.0)
+ libboost-all-dev (>= 1.48.0),
+ python-sphinx (>= 1.1.3)
 Standards-Version: 3.9.2
 Section: net
 Homepage: http://redmine.named-data.net/projects/nlsr/wiki/