diff --git a/docs/src/completions.md b/docs/src/completions.md
index ff96ede7503cd461bbd3d7b4afdedcaa2f36a2e5..7b35ec2d09d91a7ba7dc5ae4b968157e0184227f 100644
--- a/docs/src/completions.md
+++ b/docs/src/completions.md
@@ -15,6 +15,10 @@ When there is an appropriate language server available, Zed will provide complet
 
 You can manually trigger completions with `ctrl-space` or by triggering the `editor::ShowCompletions` action from the command palette.
 
+> Note: Using `ctrl-space` in Zed requires disabling the macOS global shortcut.
+> Open **System Settings** > **Keyboard** > **Keyboard Shortcut**s >
+> **Input Sources** and uncheck **Select the previous input source**.
+
 For more information, see:
 
 - [Configuring Supported Languages](./configuring-languages.md)