diff --git a/docs/Config_Reference.md b/docs/Config_Reference.md
index 3adc69805b44..bf7c7daca1de 100644
--- a/docs/Config_Reference.md
+++ b/docs/Config_Reference.md
@@ -4648,6 +4648,10 @@ more information.
 #   detected. See docs/Command_Templates.md for G-Code format. If
 #   pause_on_runout is set to True this G-Code will run after the
 #   PAUSE is complete. The default is not to run any G-Code commands.
+#immediate_runout_gcode:
+#   A list of G-Code commands to execute immediately after a filament
+#   runout is detected and runout_distance is greater than 0.
+#   See docs/Command_Templates.md for G-Code format.
 #insert_gcode:
 #   A list of G-Code commands to execute after a filament insert is
 #   detected. See docs/Command_Templates.md for G-Code format. The