diff --git a/tests/driver_sx127x/main.c b/tests/driver_sx127x/main.c
index 29d859cbd5..6f5063a3a7 100644
--- a/tests/driver_sx127x/main.c
+++ b/tests/driver_sx127x/main.c
@@ -359,7 +359,7 @@ int rx_timeout_cmd(int argc, char **argv)
     }
 
     netdev_t *netdev = (netdev_t *)&sx127x;
-    uint8_t rx_timeout;
+    uint16_t rx_timeout;
 
     if (strstr(argv[1], "set") != NULL) {
         if (argc < 3) {