diff --git a/cube/User/Src/configCmds.c b/cube/User/Src/configCmds.c
index 566c479..347f373 100644
--- a/cube/User/Src/configCmds.c
+++ b/cube/User/Src/configCmds.c
@@ -221,6 +221,7 @@ static bool addDeviceCmd(uint8_t argc, char **args) {
             sendFormatString("  Considered field: %d\n\r", deviceBlock.consideredField[i]);
         }
     }
+    deviceBlock.deviceMagic = DEVICE_MAGIC;
 
     uint8_t index = getConfig()->numOfDeviceBlocks;
     for (uint8_t i = 0; i < getConfig()->numOfDeviceBlocks; i++) {