diff --git a/src/tls/tlsv1_client_read.c b/src/tls/tlsv1_client_read.c
index 475a6e903..8367e3615 100644
--- a/src/tls/tlsv1_client_read.c
+++ b/src/tls/tlsv1_client_read.c
@@ -931,6 +931,8 @@ static int tls_process_server_finished(struct tlsv1_client *conn, u8 ct,
 
 	if (os_memcmp(pos, verify_data, TLS_VERIFY_DATA_LEN) != 0) {
 		wpa_printf(MSG_INFO, "TLSv1: Mismatch in verify_data");
+		tls_alert(conn, TLS_ALERT_LEVEL_FATAL,
+			  TLS_ALERT_DECRYPT_ERROR);
 		return -1;
 	}