diff --git a/README.rst b/README.rst
index b992c09..09f2d43 100644
--- a/README.rst
+++ b/README.rst
@@ -1,5 +1,12 @@
 A simple VTE-based terminal.
 
+DEPENDENCIES
+============
+
+Either vte (default) or vte3, including the vte dependencies.
+
+You can use vte3 by building with ``make GTK3=1``.
+
 KEYBINDINGS
 ===========