diff --git a/main/esp32-lora.c b/main/esp32-lora.c
index 715ff24..eb46995 100644
--- a/main/esp32-lora.c
+++ b/main/esp32-lora.c
@@ -515,6 +515,11 @@ uint8_t lora32_init(lora32_cfg_t *lora) {
   lora32_standby(lora);
   ESP_LOGI(TAG, "lora32_standby");
 
+  if(lora->implicitHeader)
+    lora23_set_implicit_header(lora);
+  else
+    lora23_set_explicit_header(lora);
+
   // TODO setup shouldn't be based on just receive callback
   if(lora->receive != NULL) {
     ESP_LOGI(TAG, "Setting GPIO Interrupt");