diff --git a/README.md b/README.md
index 12d8d0f..cce2883 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ mbed target NUCLEO_L073RZ
 mbed config -G GCC_ARM_PATH /opt/gcc-arm-none-eabi-7-2017-q4-major/bin
 cp mbed_app.json.sample mbed_app.json
 # modify lora.device-eui, lora.application-eui and lora.application-key in mbed_app.json
+# or use the provided script to change them into the binary file
 mbed compile --profile profiles/release.json
 ```