diff --git a/stm32f103t8u6/src/hgpl.c b/stm32f103t8u6/src/hgpl.c
index 61551c1..c198c0e 100644
--- a/stm32f103t8u6/src/hgpl.c
+++ b/stm32f103t8u6/src/hgpl.c
@@ -1,6 +1,7 @@
 #include "hpgl.h"
 #include "usb_cdc.h"
 #include "pwm_output.h"
+#include "led.h"
 
 unsigned int HPGL_ParseErrorCounter = 0;
 
@@ -58,6 +59,8 @@ void HPGL_Poll(void)
         // Nothing received
         return;
     }
+    LED_On(LED_Pink);
+    LED_On(LED_Orange);
     char character = received;
 
     switch(state)