diff --git a/s48/module-system/packages.scm b/s48/module-system/packages.scm
index d4c1953..f00d260 100644
--- a/s48/module-system/packages.scm
+++ b/s48/module-system/packages.scm
@@ -44,3 +44,11 @@
 	ensures-loaded
 	package-commands-internal)
   (files rt-module))
+
+(define-structure overlapping-imports? (export)
+  (open scheme
+	optimizer
+	signals 
+	general-tables 
+	packages-internal)
+  (files overlapping-imports))
\ No newline at end of file