diff --git a/info.rkt b/info.rkt
index ce88d54..f8e8e64 100644
--- a/info.rkt
+++ b/info.rkt
@@ -2,4 +2,4 @@
 (define collection "css-tools")
 (define scribblings '(("scribblings/css-tools.scrbl" ())))
 (define deps '(("base" #:version "6.0") "sugar"))
-(define build-deps '("scribble-lib"))
+(define build-deps '("scribble-lib" "rackunit-lib"))