1--- a/protocol/protocol-icon.vala 2013-08-27 12:53:57 +0000
2+++ b/protocol/protocol-icon.vala 2021-04-13 22:34:41 +0000
3@@ -185,7 +185,7 @@
4 }
5
6 /* Added to GIcon interface in 2.37 */
7- private Variant serialize ()
8+ private Variant? serialize ()
9 {
10 Variant? ret = null;
11 return ret;
12