diff --git a/limiter/quota/wrapper/conn.go b/limiter/quota/wrapper/conn.go
index 0c7d4c76..dbe97e8c 100644
--- a/limiter/quota/wrapper/conn.go
+++ b/limiter/quota/wrapper/conn.go
@@ -76,3 +76,9 @@ func (c *quotaConn) Context() context.Context {
 	}
 	return nil
 }
+
+// UnwrapConn returns the underlying connection, allowing type assertions
+// in handlers that iterate wrapper layers (e.g., SSH handler's unwrapConn).
+func (c *quotaConn) UnwrapConn() net.Conn {
+	return c.Conn
+}