diff --git a/pub/database.go b/pub/database.go
index d5673f1..0c2024e 100644
--- a/pub/database.go
+++ b/pub/database.go
@@ -101,7 +101,7 @@ type Database interface {
 	// at the specified IRI, for prepending new items.
 	//
 	// The library makes this call only after acquiring a lock first.
-	GetOutbox(c context.Context, outboxIRI *url.URL) (inbox vocab.ActivityStreamsOrderedCollectionPage, err error)
+	GetOutbox(c context.Context, outboxIRI *url.URL) (outbox vocab.ActivityStreamsOrderedCollectionPage, err error)
 	// SetOutbox saves the outbox value given from GetOutbox, with new items
 	// prepended. Note that the new items must not be added as independent
 	// database entries. Separate calls to Create will do that.
@@ -128,12 +128,12 @@ type Database interface {
 	// If modified, the library will then call Update.
 	//
 	// The library makes this call only after acquiring a lock first.
-	Following(c context.Context, actorIRI *url.URL) (followers vocab.ActivityStreamsCollection, err error)
+	Following(c context.Context, actorIRI *url.URL) (following vocab.ActivityStreamsCollection, err error)
 	// Liked obtains the Liked Collection for an actor with the
 	// given id.
 	//
 	// If modified, the library will then call Update.
 	//
 	// The library makes this call only after acquiring a lock first.
-	Liked(c context.Context, actorIRI *url.URL) (followers vocab.ActivityStreamsCollection, err error)
+	Liked(c context.Context, actorIRI *url.URL) (liked vocab.ActivityStreamsCollection, err error)
 }