diff --git a/docs/API_Server.md b/docs/API_Server.md
index 42885f9b..6e43ce3e 100644
--- a/docs/API_Server.md
+++ b/docs/API_Server.md
@@ -170,7 +170,7 @@ gcode:
 When the PANELDUE_BEEP gcode macro is executed, Klipper would send something
 like the following over the socket:
 `{"action": "run_paneldue_beep",
-"params": {"frequency": 300, "duration": 1.0}}
+"params": {"frequency": 300, "duration": 1.0}}`
 
 ### objects/list