diff --git a/pages/common/st-util.md b/pages/common/st-util.md
index 6b0861f88..8dad0a735 100644
--- a/pages/common/st-util.md
+++ b/pages/common/st-util.md
@@ -4,7 +4,7 @@
 
 - Run GDB server on port 4500:
 
-`st-util -p 4500`
+`st-util --listen_port {{4500}}`
 
 - Connect to GDB server: