diff --git a/platformio.ini b/platformio.ini
index bcfb01ebf948e97741df64a44c8a9a5f65a9df54..040aa5f736256f4b46772c1def8b9a3027d11591 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -41,4 +41,4 @@ board = nucleo_g474re
 # Supported upload protocols: mbed, stlink, jlink
 upload_protocol = stlink
 
-#debug_tool = jlink
+debug_tool = stlink