diff --git a/lib/wiki-scraper.ts b/lib/wiki-scraper.ts
index 2636eb9..9593a83 100644
--- a/lib/wiki-scraper.ts
+++ b/lib/wiki-scraper.ts
@@ -250,7 +250,7 @@ function processHeading(text: string, level: number, state: State): void {
   }
   if (!state.active) return
   if (level === 3 || level === 4) {
-    if (/^group [a-h1-9]+$/i.test(t)) {
+    if (/^group [a-z1-9]+$/i.test(t)) {
       state.group = text.trim()
     } else if (/round of 32/i.test(t)) {
       state.round = 'Round of 32'; state.group = null