diff --git a/client/tarantool/tc_print.c b/client/tarantool/tc_print.c
index bacdef37eb3d390221cb1e31668df138447d8b0d..512cb6b811c4e740e1389b4ed37b162272870a60 100644
--- a/client/tarantool/tc_print.c
+++ b/client/tarantool/tc_print.c
@@ -243,7 +243,7 @@ void tc_print_lua_field(char *data, uint32_t size, char string)
 		tc_printf("%"PRIu32, *((uint32_t*)data));
 		break;
 	case 8:
-		tc_printf("%"PRIu64, *((uint64_t*)data));
+		tc_printf("%"PRIu64"LL", *((uint64_t*)data));
 		break;
 	default:
 _string: