diff --git a/config/models b/config/models
index 593ff09..676595a 100644
--- a/config/models
+++ b/config/models
@@ -46,10 +46,12 @@ Tag
     package PackageName
     tag Slug
     voter UserId
+    UniqueTagPackageVoter package tag voter
 
 Like
     package PackageName
     voter UserId
+    UniqueLikePackageVoter package voter
 
 Download
     ident PackageSetIdent Maybe