diff --git a/structs.go b/structs.go
index 28158c3..3b251c0 100644
--- a/structs.go
+++ b/structs.go
@@ -612,7 +612,7 @@ type Emoji struct {
 
 // EmojiRegex is the regex used to find and identify emojis in messages
 var (
-	EmojiRegex = regexp.MustCompile(`<(a|):[A-z0-9_~]+:[0-9]{18,20}>`)
+	EmojiRegex = regexp.MustCompile(`<(a|):[A-Za-z0-9_~]+:[0-9]{18,20}>`)
 )
 
 // MessageFormat returns a correctly formatted Emoji for use in Message content and embeds