diff --git a/platforms/libusb/main.c b/platforms/libusb/main.c
index c1c1ce5e6..5ede8cb56 100644
--- a/platforms/libusb/main.c
+++ b/platforms/libusb/main.c
@@ -74,7 +74,7 @@ static void sigint_handler(int param){
     exit(0);
 }
 
-static led_state = 0;
+static int led_state = 0;
 void hal_led_toggle(){
     led_state = 1 - led_state;
     printf("LED State %u\n", led_state);