object/fetch: Use proper errors

1 files changed, 3 insertions, 3 deletions

diff --git a/object/fetch/peel_to_tree.go b/object/fetch/peel_to_tree.go
index 5446eac0..adc87e6b 100644
--- a/object/fetch/peel_to_tree.go
+++ b/object/fetch/peel_to_tree.go
@@ -1,13 +1,13 @@
 package fetch
 
 import (
-	"fmt"
-
+	giterrors "codeberg.org/lindenii/furgit/errors"
 	"codeberg.org/lindenii/furgit/object/commit"
 	objectid "codeberg.org/lindenii/furgit/object/id"
 	"codeberg.org/lindenii/furgit/object/stored"
 	"codeberg.org/lindenii/furgit/object/tag"
 	"codeberg.org/lindenii/furgit/object/tree"
+	objecttype "codeberg.org/lindenii/furgit/object/type"
 )
 
 // PeelToTree peels tags until it reaches a tree or commit. If it reaches a
@@ -29,7 +29,7 @@ func (r *Fetcher) PeelToTree(id objectid.ObjectID) (*stored.Stored[*tree.Tree],
 		case *tag.Tag:
 			id = parsed.Target
 		default:
-			return nil, fmt.Errorf("object/fetch: expected tree-ish object %s, got %v", id, parsed.ObjectType())
+			return nil, &giterrors.ObjectTypeError{OID: id, Got: parsed.ObjectType(), Want: objecttype.TypeTree}
 		}
 	}
 }