diff --git a/doc/build-unix.md b/doc/build-unix.md
index 9d4b662d0..0f381d56c 100644
--- a/doc/build-unix.md
+++ b/doc/build-unix.md
@@ -91,7 +91,7 @@ To enable the change run
 
 	sudo apt-get update
 
-for other Ubuntu & Debian:
+for other Debian & Ubuntu (with ppa):
 
 	sudo apt-get install libdb4.8-dev libdb4.8++-dev