diff --git a/server.go b/server.go
index 8335c10..b3f4ef6 100644
--- a/server.go
+++ b/server.go
@@ -356,6 +356,7 @@ func ConvertInterface(from interface{}, toType reflect.Type) reflect.Value {
 		return reflect.ValueOf(val)
 	}
 
+	logger.Println("ConvertInterface :", fromtype.String(), toType.String(), toType.Kind().String())
 	return fromrv.Convert(toType)
 }