diff --git a/sdk/monitor/opentelemetry-exporter/src/utils/spanUtils.ts b/sdk/monitor/opentelemetry-exporter/src/utils/spanUtils.ts
index e8c23a740489..1cf6398e07e8 100644
--- a/sdk/monitor/opentelemetry-exporter/src/utils/spanUtils.ts
+++ b/sdk/monitor/opentelemetry-exporter/src/utils/spanUtils.ts
@@ -210,9 +210,9 @@ export function readableSpanToEnvelope(
     default:
       // never
       if (logger) {
-        logger.error(`Unsupported span kind ${span.kind as string}`);
+        logger.error(`Unsupported span kind ${span.kind}`);
       }
-      throw new Error(`Unsupported span kind ${span.kind as string}`);
+      throw new Error(`Unsupported span kind ${span.kind}`);
   }
 
   envelope.data.baseData = { ...data, properties };