syntax of ; on_motion_detected value

I'm trying to run a script that will execute a bash script when motion is detected.

This is the default code:
#Command to be executed when a motion frame is detected (default: none)

; on_motion_detected value"

This is what I put in:
#Command to be executed when a motion frame is detected (default: none)

on_motion_detected /path/to/script

__

Using the terminal, this runs the script just fine by sending a notify-send.
I also ran chmod +x /path/to/script

It seems like I am writing the option incorrectly as nothing is occuring. Even when I replace path/to/script with "touch rand124.txt" nothing is created when I create motion despite an .avi being recorded as a event.

The explanation says:
############################################################
# External Commands, Warnings and Logging:
# You can use conversion specifiers for the on_xxxx commands
# %Y = year, %m = month, %d = date,
# %H = hour, %M = minute, %S = second,
# %v = event, %q = frame number, %t = thread (camera) number,
# %D = changed pixels, %N = noise level,
# %i and %J = width and height of motion area,
# %K and %L = X and Y coordinates of motion center
# %C = value defined by text_event
# %f = filename with full path
# %n = number indicating filetype
# Both %f and %n are only defined for on_picture_save,
# on_movie_start and on_movie_end
# Quotation marks round string are allowed.
############################################################

But I am unable to figure out how to use that to correctly write the option. I do plan on using %f once I figure this out however.

What is the correct syntax of writing in this option?