diff --git a/extra/grouping/extras/extras-docs.factor b/extra/grouping/extras/extras-docs.factor
index b1e6867f825..c4af0e02ca6 100644
--- a/extra/grouping/extras/extras-docs.factor
+++ b/extra/grouping/extras/extras-docs.factor
@@ -1,4 +1,4 @@
-USING: arrays grouping help.markup help.syntax kernel math
+USING: arrays assocs grouping help.markup help.syntax kernel math
 quotations sequences ;
 IN: grouping.extras