diff --git a/internal/util/link/outbound.go b/internal/util/link/outbound.go
index cfcf18b82..8ba193396 100644
--- a/internal/util/link/outbound.go
+++ b/internal/util/link/outbound.go
@@ -781,8 +781,10 @@ func base64DecodeFlexible(s string) (string, error) {
 	return "", fmt.Errorf("base64 decode failed")
 }
 
-// SlugRemark turns a free-form remark into a conservative DNS-ish tag segment.
-var slugRe = regexp.MustCompile(`[^a-z0-9]+`)
+// SlugRemark turns a free-form remark into a tag segment, keeping Unicode
+// letters and digits (so non-ASCII remarks like Cyrillic stay readable) and
+// replacing every other run of characters with a single dash.
+var slugRe = regexp.MustCompile(`[^\p{L}\p{N}]+`)
 
 func SlugRemark(remark string) string {
 	s := strings.ToLower(strings.TrimSpace(remark))
diff --git a/internal/util/link/outbound_test.go b/internal/util/link/outbound_test.go
index 1dbadaf00..43d2a6079 100644
--- a/internal/util/link/outbound_test.go
+++ b/internal/util/link/outbound_test.go
@@ -59,4 +59,11 @@ func TestSlugAndSuggest(t *testing.T) {
 	if tag != "hk-sg-01" {
 		t.Errorf("suggest tag got %q", tag)
 	}
+	// Non-ASCII letters/digits are preserved rather than stripped.
+	if got := SlugRemark("Москва 🇷🇺 01"); got != "москва-01" {
+		t.Errorf("unicode slug got %q", got)
+	}
+	if got := SuggestTag("ru-", "Сервер 2", 0); got != "ru-сервер-2" {
+		t.Errorf("unicode suggest tag got %q", got)
+	}
 }