How to stop /random from sending messages in chat

Whenever I run the following command, a message is sent in chat.
execute store result score skirmisher gbz.random_roll run random roll 1..9
It will then send in chat, "Gamingbarn rolled 9 (from 1 to 9).
The message still sends even if the command is ran inside of a function.
Is there any way to stop this?