diff --git a/sources/RowanPackageService.cls b/sources/RowanPackageService.cls
index 78f67d85..52a65521 100644
--- a/sources/RowanPackageService.cls
+++ b/sources/RowanPackageService.cls
@@ -24,7 +24,8 @@ addHierarchyService: service to: treeModel withParent: parentService
 
 basicPrepareForReplication
 	"don't iterate over sub colletions"
-	classes := nil!
+	classes := nil.
+	testClasses := nil. !
 
 classes