diff --git a/src/db/metric_proxy.rs b/src/db/metric_proxy.rs
index c0856a57..469f8088 100644
--- a/src/db/metric_proxy.rs
+++ b/src/db/metric_proxy.rs
@@ -32,7 +32,7 @@ impl MetricDbProxy {
 			op_duration: meter
 				.f64_value_recorder("db.op_duration")
 				.with_description("Duration of operations on the local metadata engine")
-				.with_unit(Unit::new("us"))
+				.with_unit(Unit::new("ms"))
 				.init(),
 		};
 		Db(Arc::new(s))
@@ -57,9 +57,8 @@ impl MetricDbProxy {
 		let delay_nanos = Instant::now()
 			.saturating_duration_since(request_start)
 			.as_nanos();
-		let delay_micro: f64 = delay_nanos as f64 / 1000.0f64;
-		println!("delay {}", delay_micro);
-		self.op_duration.record(delay_micro, &metric_tags);
+		let delay_millis: f64 = delay_nanos as f64 / 1_000_000f64;
+		self.op_duration.record(delay_millis, &metric_tags);
 
 		res
 	}