diff --git a/utils/misc/src/main/java/org/onlab/metrics/MetricsManager.java b/utils/misc/src/main/java/org/onlab/metrics/MetricsManager.java
index 7d18c62..b098513 100644
--- a/utils/misc/src/main/java/org/onlab/metrics/MetricsManager.java
+++ b/utils/misc/src/main/java/org/onlab/metrics/MetricsManager.java
@@ -77,7 +77,7 @@
         this.reporter = Slf4jReporter.forRegistry(this.metricsRegistry)
                 .outputTo(log)
                 .convertRatesTo(TimeUnit.SECONDS)
-                .convertDurationsTo(TimeUnit.MILLISECONDS)
+                .convertDurationsTo(TimeUnit.NANOSECONDS)
                 .build();
         reporter.start(1, TimeUnit.MINUTES);
     }