diff --git a/doc/build.md b/doc/build.md
index e934efab..4b3721c0 100644
--- a/doc/build.md
+++ b/doc/build.md
@@ -168,7 +168,7 @@ To enable the serve and client to start under the default run-level:
  3. Install the required libs
 
 ```   
-$ brew install flac libvorbis
+$ brew install flac libvorbis boost opus
 ```
 
 ### Build Snapclient