Tmux: Prefix Ctrl-Space not working on macOS

Tmux: Prefix Ctrl-Space not working on macOS

🤔 How did this happen?

I was configuring a new Mac. And after installing my Tmux profile with all the plugins that I needed. The shortcut wasn’t working. I tried the same command in all my terminals that I have installed: Kitty, Alacritty and the

I changed the default Tmux shortcut Ctrl-B or ^-B to ^-Space, because I feel it is more flexible.

It was really weird because the same shortcut was working in my old (but strong) Macbook from 2019.

This is the config that I have in my ~/.tmux.conf

# Rebind prefix key
unbind C-b
set-option -g prefix C-Space
bind-key C-Space send-prefix

🔨 The solution

There is a default shortcut on Mac used to move between input sources. You’ll need to go to your Mac settingsKeyboardKeyboard ShortcutsInput sources. Then, disable both shortcuts over there.

📷 Screenshots

Finding the option could be complicated. I’ll post the screenshots that I took from macOS Ventura.

Shortcut enabled Shortcut disabled
My posts are not AI generated, they might be only AI corrected. The first draft is always my creation



Written by Helmer Davila

In other languages

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