diff --git a/t/balancer.t b/t/balancer.t
index 5d8b377b0..8c97227ce 100644
--- a/t/balancer.t
+++ b/t/balancer.t
@@ -830,8 +830,8 @@ hello from balancer by lua!
 GET /t
 --- response_body_like: 502 Bad Gateway
 --- error_code: 502
---- error_log
-[lua] log_by_lua(nginx.conf:59):2: ngx.var.upstream_addr is 127.0.0.3:12345, 127.0.0.3:12346
+--- error_log eval
+qr/log_by_lua\(nginx.conf:\d+\):\d+: ngx.var.upstream_addr is 127.0.0.3:12345, 127.0.0.3:12346/
 --- no_error_log
 [alert]