diff --git a/gen.go b/gen.go
index bd2846d..6fe30a4 100644
--- a/gen.go
+++ b/gen.go
@@ -1,4 +1,4 @@
 // +build generate
-//go:generate go run ./astool -spec astool/activitystreams.jsonld -spec astool/security-v1.jsonld -spec astool/toot.jsonld -path github.com/go-fed/activity ./streams
+//go:generate go run ./astool -spec astool/activitystreams.jsonld -spec astool/security-v1.jsonld -spec astool/toot.jsonld -spec astool/forgefed.jsonld -path github.com/go-fed/activity ./streams
 
 package activity