diff --git a/doc/build-unix.md b/doc/build-unix.md
index 8a76a8b2cd..0c3376df4b 100644
--- a/doc/build-unix.md
+++ b/doc/build-unix.md
@@ -63,7 +63,7 @@ Build requirements:
 
 	sudo apt-get install build-essential libtool autotools-dev autoconf pkg-config libssl-dev
 	
-for Ubuntu 12.04 and later:
+for Ubuntu 12.04 and later or Debian 7 and later libboost-all-dev has to be installed:
 
 	sudo apt-get install libboost-all-dev