diff --git a/src/Observability/Runtime/Tracing/Processors/ActivityProcessor.cs b/src/Observability/Runtime/Tracing/Processors/ActivityProcessor.cs
index d7498da3..6b4ee325 100644
--- a/src/Observability/Runtime/Tracing/Processors/ActivityProcessor.cs
+++ b/src/Observability/Runtime/Tracing/Processors/ActivityProcessor.cs
@@ -42,6 +42,7 @@ public sealed class ActivityProcessor : BaseProcessor<Activity>
             OpenTelemetryConstants.UserNameKey,
             OpenTelemetryConstants.UserEmailKey,
             OpenTelemetryConstants.CallerClientIpKey,
+            OpenTelemetryConstants.ServiceNameKey,
         };
 
         private static readonly string[] InvokeAgentAttributeKeys = new[]