diff --git a/lineage_notes.txt b/lineage_notes.txt
index 0628c41d..0684a52a 100644
--- a/lineage_notes.txt
+++ b/lineage_notes.txt
@@ -2912,7 +2912,7 @@ HK.3	Alias of XBB.1.9.2.5.1.1.3, S:L455F, China
 HK.4	Alias of XBB.1.9.2.5.1.1.4, S:T883I, China
 HK.5	Alias of XBB.1.9.2.5.1.1.5, S:Q677H, China
 EG.5.1.2	Alias of XBB.1.9.2.5.1.2, Japan, ORF1b:V1644I
-EG.5.1.3	Alias of XBB.1.9.2.5.1.3, ORF1a:R542C, C22570T
+EG.5.1.3	Alias of XBB.1.9.2.5.1.3, ORF1a:R542C, C22570T from https://github.com/sars-cov-2-variants/lineage-proposals/issues/222
 EG.5.1.4	Alias of XBB.1.9.2.5.1.4, ORF1b:K2557R
 EG.5.1.5	Alias of XBB.1.9.2.5.1.5, ORF1a:L3293I, ORF1b:T1274I, ORF1b:L2349V, Portugal
 EG.5.1.6	Alias of XBB.1.9.2.5.1.6, S:F157L, ORF1a:S1857L, USA