diff --git a/src/lib/game-logic.ts b/src/lib/game-logic.ts
index 7c66fb5..ce86aa7 100644
--- a/src/lib/game-logic.ts
+++ b/src/lib/game-logic.ts
@@ -65,6 +65,7 @@ export function makePgn(chess: Chess, white?: string, black?: string): string {
 		['Event', 'checkmate.blue'],
 		['Site', 'https://checkmate.blue'],
 		['Date', new Date().toISOString().slice(0, 10).replace(/-/g, '.')],
+		['Round', '-'],
 	];
 	if (white) headers.push(['White', white]);
 	if (black) headers.push(['Black', black]);