diff --git a/adaptercore/olt_platform.go b/adaptercore/olt_platform.go
index 72eb124..5540392 100644
--- a/adaptercore/olt_platform.go
+++ b/adaptercore/olt_platform.go
@@ -206,7 +206,7 @@
 	}
 
 	if uniPortNo == 0 {
-		return 0, 0, 0, 0, errors.New("Failed to extract Pon Interface, ONU Id and Uni Id from flow")
+		return 0, 0, 0, 0, errors.New("failed to extract Pon Interface, ONU Id and Uni Id from flow")
 	}
 
 	ponIntf = IntfIDFromUniPortNum(uniPortNo)