diff --git a/sw/ground_segment/misc/davis2ivy.c b/sw/ground_segment/misc/davis2ivy.c
index 734fbe9093..b4a876bf14 100644
--- a/sw/ground_segment/misc/davis2ivy.c
+++ b/sw/ground_segment/misc/davis2ivy.c
@@ -101,7 +101,8 @@ void open_port(const char* device) {
 
 /// disable transactions and empty queue
 void reset_station() {
-  char newline = '\n', bytes = 0;
+  char newline = '\n';
+  char bytes __attribute__ ((unused));
   fprintf(stderr, "Resetting communication\n");
   // send a \n (wakeup and cancel all running transmits)
   bytes = write(fd, &newline, 1);