diff --git a/regression-test/suites/inverted_index_p1/test_show_data.groovy b/regression-test/suites/inverted_index_p1/test_show_data.groovy
index 648ba67561..85fbe99080 100644
--- a/regression-test/suites/inverted_index_p1/test_show_data.groovy
+++ b/regression-test/suites/inverted_index_p1/test_show_data.groovy
@@ -566,9 +566,9 @@ suite("test_show_data_with_compaction", "p1") {
     }
 
     def set_be_config = { key, value ->
-        for (backend_id: backendId_to_backendIP.keySet()) {
-            (code, out, err) = update_be_config(backendId_to_backendIP.get(backend_id), backendId_to_backendHttpPort.get(backend_id), key, value)
-            logger.info("update config: code=" + code + ", out=" + out + ", err=" + err)
+        for (backendId: backendId_to_backendIP.keySet()) {
+            def (code1, out1, err1) = update_be_config(backendId_to_backendIP.get(backendId), backendId_to_backendHttpPort.get(backendId), key, value)
+            logger.info("update config: code=" + code1 + ", out=" + out1 + ", err=" + err1)
         }
     }