diff --git a/src/stk500.c b/src/stk500.c
index 44f1c739..cb270036 100644
--- a/src/stk500.c
+++ b/src/stk500.c
@@ -111,6 +111,14 @@ int stk500_getsync(PROGRAMMER * pgm)
     max_sync_attempts = MAX_SYNC_ATTEMPTS;
 
   for (attempt = 0; attempt < max_sync_attempts; attempt++) {
+    // Restart Arduino bootloader for every sync attempt
+    if (strcmp(pgm->type, "Arduino") == 0 && attempt > 0) {
+      serial_set_dtr_rts(&pgm->fd, 0); // Set DTR and RTS low
+      usleep(250*1000);
+      serial_set_dtr_rts(&pgm->fd, 1); // Set DTR and RTS back to high
+      usleep(50*1000);
+      stk500_drain(pgm, 0);
+    }
     stk500_send(pgm, buf, 2);
     stk500_recv(pgm, resp, 1);
     if (resp[0] == Resp_STK_INSYNC){
@@ -615,8 +623,8 @@ static int stk500_parseextparms(PROGRAMMER * pgm, LISTID extparms)
 
      if (sscanf(extended_param, "attempts=%2d", &attempts) == 1) {
        PDATA(pgm)->retry_attempts = attempts;
-       avrdude_message(MSG_INFO, "%s: serialupdi_parseextparms(): invalid extended parameter '%s'\n",
-                     progname, extended_param);
+       avrdude_message(MSG_INFO, "%s: Setting number of retry attempts to %d\n",
+                     progname, attempts);
        continue;
      }