diff --git a/README.rst b/README.rst
index 6c01795..364dd8b 100644
--- a/README.rst
+++ b/README.rst
@@ -49,7 +49,7 @@ Notes
 
 Fonts are Terminus (Multicolor, Powerarrow Darker) and Tamsyn (Steamburn, Blackburn).
 
-Blackburn uses Icons_ and Yawn_.
+Blackburn uses Icons_ and Yawn_: **if you're running Ubuntu**, be sure to have Bitmaps_ enabled.
 
 Steamburn and Blackburn have X colorschemes too. Check here_.