diff --git a/perf-ycsb/src/main/java/io/streamnative/oxia/client/perf/ycsb/Worker.java b/perf-ycsb/src/main/java/io/streamnative/oxia/client/perf/ycsb/Worker.java
index 52472d20..2090335b 100644
--- a/perf-ycsb/src/main/java/io/streamnative/oxia/client/perf/ycsb/Worker.java
+++ b/perf-ycsb/src/main/java/io/streamnative/oxia/client/perf/ycsb/Worker.java
@@ -132,7 +132,7 @@ public Worker(WorkerOptions options, OpenTelemetry openTelemetry) {
                         .build();
         this.outstandingRequestGauge =
                 meter
-                        .gaugeBuilder("oxia.operf.ycsb.op.outstanding")
+                        .gaugeBuilder("oxia.perf.ycsb.op.outstanding")
                         .setDescription("oxia outstanding request")
                         .setUnit(Unit.Requests.toString())
                         .ofLongs()