diff --git a/util/common/traces/generate.go b/util/common/traces/generate.go
index 74fbc71d7..e89c44742 100644
--- a/util/common/traces/generate.go
+++ b/util/common/traces/generate.go
@@ -34,7 +34,8 @@ func StartTraceGeneration(receiver string, agentConfigPath string, agentRuntime
 		cfg.Generator = xray.NewLoadGenerator(&xrayGenCfg)
 		cfg.Name = "xray-performance-test"
 	case "otlp":
-		panic("Only supports xray for now.")
+   default:
+		return fmt.Errorf("%s is not supported.", receiver)
 	default:
 		panic("Invalid trace receiver")
 	}