diff --git a/doc/build-unix.md b/doc/build-unix.md
index 5ccdaa628..708e4216f 100644
--- a/doc/build-unix.md
+++ b/doc/build-unix.md
@@ -59,7 +59,7 @@ Dependency Build Instructions: Ubuntu & Debian
 ----------------------------------------------
 Build requirements:
 
-	sudo apt-get install build-essential libtool autotools-dev autoconf pkg-config libssl-dev libevent-dev
+	sudo apt-get install build-essential libtool autotools-dev autoconf pkg-config libssl-dev libevent-dev automake
 
 For Ubuntu 12.04 and later or Debian 7 and later libboost-all-dev has to be installed: