@@ -9,10 +9,12 @@
 
 @(require "scribble-helpers.rkt")
 @(require (for-label "../pollen.rkt"
                      "../dust.rkt"
                      racket/base
+                     racket/contract
+                     racket/string
                      txexpr
                      pollen/tag
                      pollen/setup
                      pollen/core
                      sugar/coerce))