diff --git a/zilti/packages/egg-generator.scm b/egg-generator.cscm
similarity index 100%
rename from zilti/packages/egg-generator.scm
rename to egg-generator.cscm
diff --git a/zilti/build-system/chicken.scm b/zilti/build-system/chicken.scm
index 30e705b..72fa28d 100644
--- a/zilti/build-system/chicken.scm
+++ b/zilti/build-system/chicken.scm
@@ -50,7 +50,7 @@ EXTENSION is the file name extension, such as '.tar.gz'."
 (define (default-chicken)
   "Return the default Chicken package."
   ;; Lazily resolve the binding to avoid a circular dependency.
-  (let ((chicken (resolve-interface '(zilti packages chicken))))
+  (let ((chicken (resolve-interface '(gnu packages chicken))))
     (module-ref chicken 'chicken)))
 
 (define* (lower name