diff --git a/pipeline/default.go b/pipeline/default.go
index 259ed7bf6..5a9d2e329 100644
--- a/pipeline/default.go
+++ b/pipeline/default.go
@@ -6,7 +6,8 @@ import (
 	"github.com/goreleaser/goreleaser/context"
 )
 
-// Defaulter interface
+// Defaulter can be implemented by a Piper to set default values for its
+// configuration.
 type Defaulter interface {
 	fmt.Stringer