diff --git a/BugsnagPerformance/Assets/BugsnagPerformance/Scripts/Models/SpanModel.cs b/BugsnagPerformance/Assets/BugsnagPerformance/Scripts/Models/SpanModel.cs
index fb52fb9..e4b3281 100644
--- a/BugsnagPerformance/Assets/BugsnagPerformance/Scripts/Models/SpanModel.cs
+++ b/BugsnagPerformance/Assets/BugsnagPerformance/Scripts/Models/SpanModel.cs
@@ -111,6 +111,12 @@ private string GetNanoSeconds(DateTimeOffset time)
             var duration = time - _unixStart;
             return (duration.Ticks * 100).ToString();
         }
+
+         // This method tells Json.NET whether to serialize the droppedAttributesCount or not.
+        public bool ShouldSerializedroppedAttributesCount()
+        {
+            return droppedAttributesCount > 0;
+        }
     }
 
 }
diff --git a/features/manual_spans.feature b/features/manual_spans.feature
index 6b35fef..c00dd6b 100644
--- a/features/manual_spans.feature
+++ b/features/manual_spans.feature
@@ -18,7 +18,7 @@ Feature: Manual creation of spans
     * the trace payload field "resourceSpans.0.scopeSpans.0.spans.0.endTimeUnixNano" matches the regex "^[0-9]+$"
     * the trace payload field "resourceSpans.0.scopeSpans.0.spans.0" string attribute "net.host.connection.type" equals "wifi"
     * the trace payload field "resourceSpans.0.scopeSpans.0.spans.0" string attribute "bugsnag.span.category" equals "custom"
-    * the trace payload field "resourceSpans.0.scopeSpans.0.spans.0.droppedAttributesCount" equals 0
+    * the trace payload field "resourceSpans.0.scopeSpans.0.spans.0.droppedAttributesCount" is null
 
     #Resource attributes
     * the trace payload field "resourceSpans.0.resource" string attribute "deployment.environment" is one of: