diff --git a/quic/tools/simple_ticket_crypter.h b/quic/tools/simple_ticket_crypter.h
index 4c6b9ce..330c509 100644
--- a/quic/tools/simple_ticket_crypter.h
+++ b/quic/tools/simple_ticket_crypter.h
@@ -17,7 +17,7 @@
 // keeping track of the previous key used to facilitate decrypting older
 // tickets. This implementation is not suitable for server setups where multiple
 // servers need to share keys.
-class QUIC_EXPORT SimpleTicketCrypter
+class QUIC_NO_EXPORT SimpleTicketCrypter
     : public quic::ProofSource::TicketCrypter {
  public:
   explicit SimpleTicketCrypter(QuicClock* clock);