diff --git a/dd-trace-core/src/main/java/datadog/trace/common/metrics/AggregateEntry.java b/dd-trace-core/src/main/java/datadog/trace/common/metrics/AggregateEntry.java
index 29ce3d0bea4..b18fce272a4 100644
--- a/dd-trace-core/src/main/java/datadog/trace/common/metrics/AggregateEntry.java
+++ b/dd-trace-core/src/main/java/datadog/trace/common/metrics/AggregateEntry.java
@@ -105,7 +105,8 @@ final class AggregateEntry extends Hashtable.Entry {
   private int errorCount;
   private int hitCount;
   private int topLevelCount;
-  private long duration;
+  private long okDuration;
+  private long errorDuration;
 
   /**
    * Field-bearing constructor. Package-private so {@link AggregateEntryTestUtils} can build
@@ -155,11 +156,12 @@ AggregateEntry recordOneDuration(long tagAndDuration) {
     if ((tagAndDuration & ERROR_TAG) == ERROR_TAG) {
       tagAndDuration ^= ERROR_TAG;
       errorLatenciesForWrite().accept(tagAndDuration);
+      errorDuration += tagAndDuration;
       ++errorCount;
     } else {
       okLatencies.accept(tagAndDuration);
+      okDuration += tagAndDuration;
     }
-    duration += tagAndDuration;
     return this;
   }
 
@@ -176,7 +178,15 @@ int getTopLevelCount() {
   }
 
   long getDuration() {
-    return duration;
+    return okDuration + errorDuration;
+  }
+
+  long getOkDuration() {
+    return okDuration;
+  }
+
+  long getErrorDuration() {
+    return errorDuration;
   }
 
   Histogram getOkLatencies() {
@@ -214,7 +224,8 @@ void clear() {
     this.errorCount = 0;
     this.hitCount = 0;
     this.topLevelCount = 0;
-    this.duration = 0;
+    this.okDuration = 0;
+    this.errorDuration = 0;
     this.okLatencies.clear();
     // errorLatencies stays null on entries that never errored. Only clear if it was allocated.
     if (this.errorLatencies != null) {