diff --git a/README.md b/README.md
index 3f54ebf..45e9fdd 100644
--- a/README.md
+++ b/README.md
@@ -6,4 +6,12 @@ A multi-protocol chat program.
 ![Screenshot](data/screenshots/update-1.png)
 
 ## Building
+You can make Caya and its protocols with:
+
 `$ make`
+
+Caya itself requires the `expat_devel` package, and the XMPP protocol requires
+`gloox_devel`. You can also build either independent of the other:
+
+`$ make caya; make protocols`
+