diff --git a/LoRa.cpp b/LoRa.cpp
index 08df454..8fa6703 100644
--- a/LoRa.cpp
+++ b/LoRa.cpp
@@ -167,6 +167,8 @@ void LoRaClass::end()
 
   // stop SPI
   SPI.end();
+
+  lora_preinit_done = false;
 }
 
 int LoRaClass::beginPacket(int implicitHeader)