stack-checker: trim using for docs

diff --git a/basis/stack-checker/stack-checker-docs.factor b/basis/stack-checker/stack-checker-docs.factor
index f43248e6872215ac858a480816e38bceacff940c..b08f1f9b6d368b736bf319d8360f3820d874eca0 100644 (file)
--- a/basis/stack-checker/stack-checker-docs.factor
+++ b/basis/stack-checker/stack-checker-docs.factor
@@ -1,5 +1,6 @@
 USING: classes continuations effects help.markup help.syntax io
-kernel quotations sequences stack-checker.errors ;
+kernel quotations sequences stack-checker.backend
+stack-checker.errors ;
 IN: stack-checker
 
 ARTICLE: "inference-simple" "Straight-line stack effects"