diff --git a/libraries/AP_EFI/AP_EFI_Serial_Lutan.cpp b/libraries/AP_EFI/AP_EFI_Serial_Lutan.cpp
index 89eade4ee9..f15e7d6916 100644
--- a/libraries/AP_EFI/AP_EFI_Serial_Lutan.cpp
+++ b/libraries/AP_EFI/AP_EFI_Serial_Lutan.cpp
@@ -91,7 +91,7 @@ void AP_EFI_Serial_Lutan::update()
             pkt_nbytes = 0;
         }
     }
-    if (n == 0 || now - last_request_ms > 200) {
+    if (now - last_request_ms > 200) {
         last_request_ms = now;
         port->discard_input();
         send_request();