diff --git a/radio-settings.json b/radio-settings.json
index 4d1b469..6d5674a 100644
--- a/radio-settings.json
+++ b/radio-settings.json
@@ -109,7 +109,7 @@
       "tx_power": 18,
       "use_dio3_tcxo": true,
       "use_dio2_rf": true,
-      "preamble_length": 17,
+      "preamble_length": 17
     }
   }
 }