diff --git a/ts/editor/editor-toolbar/ClozeButton.svelte b/ts/editor/editor-toolbar/ClozeButton.svelte
index eb6fa8579..2041b60d2 100644
--- a/ts/editor/editor-toolbar/ClozeButton.svelte
+++ b/ts/editor/editor-toolbar/ClozeButton.svelte
@@ -8,6 +8,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     import IconButton from "../../components/IconButton.svelte";
     import Shortcut from "../../components/Shortcut.svelte";
     import * as tr from "../../lib/ftl";
+    import { isApplePlatform } from "../../lib/platform";
     import { getPlatformString } from "../../lib/shortcuts";
     import { wrapInternal } from "../../lib/wrap";
     import { context as noteEditorContext } from "../NoteEditor.svelte";
@@ -17,6 +18,10 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
     const { focusedInput, fields } = noteEditorContext.get();
 
+    // Workaround for Cmd+Option+Shift+C not working on macOS. The keyup approach works
+    // on Linux as well, but fails on Windows.
+    const event = isApplePlatform() ? "keyup" : "keydown";
+
     const clozePattern = /\{\{c(\d+)::/gu;
     function getCurrentHighestCloze(increment: boolean): number {
         let highest = 0;
@@ -65,6 +70,6 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
 <Shortcut
     {keyCombination}
-    event="keyup"
+    {event}
     on:action={(event) => onCloze(event.detail.originalEvent)}
 />