diff --git a/apps/s_cb.c b/apps/s_cb.c
index f4559fa70..643d91a16 100644
--- a/apps/s_cb.c
+++ b/apps/s_cb.c
@@ -714,6 +714,9 @@ static STRINT_PAIR tlsext_types[] = {
 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
     {"application layer protocol negotiation",
      TLSEXT_TYPE_application_layer_protocol_negotiation},
+#endif
+#ifdef TLSEXT_TYPE_extended_master_secret
+    {"extended master secret", TLSEXT_TYPE_extended_master_secret},
 #endif
     {NULL}
 };