diff --git a/hypertrace-graphql-metric-schema/src/main/java/org/hypertrace/graphql/metric/request/MetricArguments.java b/hypertrace-graphql-metric-schema/src/main/java/org/hypertrace/graphql/metric/request/MetricArguments.java
index 0b9cb783..32f1d570 100644
--- a/hypertrace-graphql-metric-schema/src/main/java/org/hypertrace/graphql/metric/request/MetricArguments.java
+++ b/hypertrace-graphql-metric-schema/src/main/java/org/hypertrace/graphql/metric/request/MetricArguments.java
@@ -6,7 +6,7 @@
 public class MetricArguments {
 
   public static List<Object> avgRateWithPeriod(Duration period) {
-    return List.of(period.toSeconds());
+    return List.of(period.toString());
   }
 
   public static List<Object> percentileWithSize(int size) {