diff --git a/avr/apps/network/main.asm b/avr/apps/network/main.asm
index 54a1d1b..be7cb80 100644
--- a/avr/apps/network/main.asm
+++ b/avr/apps/network/main.asm
@@ -162,6 +162,7 @@ AppNetwork_HandleMsg_handleRebootMsg:
   rcall appNetworkHandleRebootRequest
   ret
 AppNetwork_HandleMsg_handlePingMsg:
+  bigcall LedSimple_SignalId                  ; (R18, R19, R20)
   rjmp appNetworkHandlePingRequest
 AppNetwork_HandleMsg_clcRet:
   clc