diff --git a/app/telemetry/models/fcmavlinksystem.cpp b/app/telemetry/models/fcmavlinksystem.cpp
index 781e675a3..134768b78 100644
--- a/app/telemetry/models/fcmavlinksystem.cpp
+++ b/app/telemetry/models/fcmavlinksystem.cpp
@@ -494,7 +494,7 @@ std::optional<uint8_t> FCMavlinkSystem::get_fc_sys_id()
 bool FCMavlinkSystem::set_system_id(int sys_id)
 {
 
-    if(sys_id<=0 || sys_id >= UINT8_MAX){
+    if(sys_id<0 || sys_id >= UINT8_MAX){
         qWarning()<<"Invalid sys id";
         return false;
     }