diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index a99bb33439..9444c29c2c 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -2779,6 +2779,12 @@ static inline unsigned int mbedtls_ssl_session_get_ticket_flags(
            (flags & MBEDTLS_SSL_TLS1_3_TICKET_FLAGS_MASK);
 }
 
+static inline unsigned int mbedtls_ssl_session_check_ticket_flags(
+    mbedtls_ssl_session *session, unsigned int flags)
+{
+    return mbedtls_ssl_session_get_ticket_flags(session, flags) == 0;
+}
+
 static inline void mbedtls_ssl_session_set_ticket_flags(
     mbedtls_ssl_session *session, unsigned int flags)
 {
diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index 87eaa192fb..2561239a01 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -998,7 +998,7 @@ static int ssl_tls13_ticket_permission_check(mbedtls_ssl_context *ssl,
 {
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
     if (ssl->handshake->resume) {
-        if (!mbedtls_ssl_session_get_ticket_flags(
+        if (mbedtls_ssl_session_check_ticket_flags(
                 ssl->session_negotiate, kex_mode)) {
             return 0;
         }