diff --git a/core/coreiface/errors.go b/core/coreiface/errors.go
index 73442be11..81f978971 100644
--- a/core/coreiface/errors.go
+++ b/core/coreiface/errors.go
@@ -2,5 +2,7 @@ package iface
 
 import "errors"
 
-var ErrIsDir = errors.New("object is a directory")
-var ErrOffline = errors.New("can't resolve, ipfs node is offline")
+var (
+	ErrIsDir   = errors.New("object is a directory")
+	ErrOffline = errors.New("can't resolve, ipfs node is offline")
+)