diff --git a/engine/resources/group.go b/engine/resources/group.go
index 07c6a1fc..a5efaee0 100644
--- a/engine/resources/group.go
+++ b/engine/resources/group.go
@@ -41,6 +41,7 @@ const groupFile = "/etc/group"
 // GroupRes is a user group resource.
 type GroupRes struct {
 	traits.Base // add the base methods without re-implementation
+	traits.Edgeable
 
 	init *engine.Init
 
@@ -266,6 +267,11 @@ type GroupUID struct {
 	gid  *uint32
 }
 
+// AutoEdges returns the AutoEdge interface.
+func (obj *GroupRes) AutoEdges() (engine.AutoEdge, error) {
+	return nil, nil
+}
+
 // IFF aka if and only if they are equivalent, return true. If not, false.
 func (obj *GroupUID) IFF(uid engine.ResUID) bool {
 	res, ok := uid.(*GroupUID)