diff --git a/internal/core/subsume/subsume.go b/internal/core/subsume/subsume.go
index 82f522457b2..dc8ffcd8607 100644
--- a/internal/core/subsume/subsume.go
+++ b/internal/core/subsume/subsume.go
@@ -138,7 +138,7 @@ func (s *subsumer) getError() (err errors.Error) {
 	}
 	err = s.errs
 	if s.inexact {
-		err = internal.DecorateError(internal.ErrInexact, err)
+		err = errors.Wrap(err, internal.ErrInexact)
 	}
 	return err
 }
diff --git a/internal/internal.go b/internal/internal.go
index 60011807c2a..6a53ff6ddbc 100644
--- a/internal/internal.go
+++ b/internal/internal.go
@@ -430,19 +430,3 @@ func GenPath(root string) string {
 }
 
 var ErrInexact = errors.New("inexact subsumption")
-
-func DecorateError(info error, err errors.Error) errors.Error {
-	return &decorated{cueError: err, info: info}
-}
-
-type cueError = errors.Error
-
-type decorated struct {
-	cueError
-
-	info error
-}
-
-func (e *decorated) Is(err error) bool {
-	return errors.Is(e.info, err) || errors.Is(e.cueError, err)
-}