diff --git a/README.md b/README.md
index c9dfbd18..bce6fe61 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ The Gtk+3 theme uses the builtin engine and consequently has no dependencies.
 ### Build dependencies ###
 Debian or Ubuntu:
 
-`sudo apt install libgdk-pixbuf2.0-dev libglib2.0-bin librsvg2-dev ruby-sass`
+`sudo apt install libgdk-pixbuf2.0-dev libglib2.0-bin librsvg2-dev ruby-sass`sassc
 
 Fedora: