diff --git a/backend/app/rest/httperrors.go b/backend/app/rest/httperrors.go
index 48a815ec..f682b3ec 100644
--- a/backend/app/rest/httperrors.go
+++ b/backend/app/rest/httperrors.go
@@ -12,6 +12,7 @@ import (
 	"github.com/go-pkgz/rest"
 )
 
+// All error codes for UI mapping and translation
 const (
 	ErrInternal           = 0  // any internal error
 	ErrCommentNotFound    = 1  // can't find comment