diff --git a/src/lora_utils.cpp b/src/lora_utils.cpp
index d27c4e9..f77bd79 100644
--- a/src/lora_utils.cpp
+++ b/src/lora_utils.cpp
@@ -206,4 +206,8 @@ namespace LoRa_Utils {
         return packet;
     }
 
+    void sleepRadio() {
+        radio.sleep();
+    }
+
 }
\ No newline at end of file
diff --git a/src/lora_utils.h b/src/lora_utils.h
index e1073b4..dc5378d 100644
--- a/src/lora_utils.h
+++ b/src/lora_utils.h
@@ -13,6 +13,7 @@ namespace LoRa_Utils {
     void changeFreqTx();
     void changeFreqRx();
     void startReceive(); // ???
+    void sleepRadio();
 
 }
 
diff --git a/src/utils.cpp b/src/utils.cpp
index 1dff34e..40459d9 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -6,6 +6,7 @@
 #include "boards_pinout.h"
 #include "syslog_utils.h"
 #include "A7670_utils.h"
+#include "lora_utils.h"
 #include "wifi_utils.h"
 #include "gps_utils.h"
 #include "bme_utils.h"
@@ -294,6 +295,8 @@ namespace Utils {
                     digitalWrite(VEXT_CTRL, LOW);
                 #endif
             #endif
+            LoRa_Utils::sleepRadio();
+            delay(100);
             esp_deep_sleep_start();
         }
     }