diff --git a/spec/freebsd/interface.go b/spec/freebsd/interface.go
index 69645567f..5d497607d 100644
--- a/spec/freebsd/interface.go
+++ b/spec/freebsd/interface.go
@@ -14,5 +14,5 @@ type InterfaceGenerator struct {
 // Generate XXX
 func (g *InterfaceGenerator) Generate() ([]mkr.Interface, error) {
 	// TODO
-	return []mkr.any, nil
+	return []mkr.Interface(nil), nil
 }
diff --git a/spec/netbsd/interface.go b/spec/netbsd/interface.go
index 9252089cb..e0aaf1260 100644
--- a/spec/netbsd/interface.go
+++ b/spec/netbsd/interface.go
@@ -14,5 +14,5 @@ type InterfaceGenerator struct {
 // Generate XXX
 func (g *InterfaceGenerator) Generate() ([]mkr.Interface, error) {
 	// TODO
-	return []mkr.any, nil
+	return []mkr.Interface(nil), nil
 }