diff --git a/README.md b/README.md
index f896053..ba88546 100644
--- a/README.md
+++ b/README.md
@@ -39,9 +39,10 @@ st-flash write led_driver.bin  0x8000000
 ### Debug
 
 ```
-target extended-remote localhost:4500
+st-util # this stays running
 gdb led_driver.elf
 # in gdb then:
+target extended-remote localhost:4242
 load
 ```