diff --git a/plumbing/object/tag.go b/plumbing/object/tag.go
index 03749f9a4..7f5e40612 100644
--- a/plumbing/object/tag.go
+++ b/plumbing/object/tag.go
@@ -141,7 +141,7 @@ func (t *Tag) Decode(o plumbing.EncodedObject) (err error) {
 			if pgpsig {
 				if bytes.Contains(l, []byte(endpgp)) {
 					t.PGPSignature += endpgp + "\n"
-					pgpsig = false
+					break
 				} else {
 					t.PGPSignature += string(l) + "\n"
 				}