diff --git a/packages/ui/src/lib/components/RoomyThread.svelte b/packages/ui/src/lib/components/RoomyThread.svelte
index 5d48f34..08dfe5e 100644
--- a/packages/ui/src/lib/components/RoomyThread.svelte
+++ b/packages/ui/src/lib/components/RoomyThread.svelte
@@ -132,7 +132,6 @@
    * person already knows from every list of messages they have ever selected in.
    */
   function pick(event: MouseEvent | KeyboardEvent, index: number): void {
-    event.preventDefault()
     const target = visible[index]
     if (!target) return
     if (event.shiftKey && anchor >= 0 && anchor < visible.length) {
diff --git a/packages/ui/src/lib/components/RoomyThread.svelte.test.ts b/packages/ui/src/lib/components/RoomyThread.svelte.test.ts
index fb0e810..fc1b92a 100644
--- a/packages/ui/src/lib/components/RoomyThread.svelte.test.ts
+++ b/packages/ui/src/lib/components/RoomyThread.svelte.test.ts
@@ -146,9 +146,11 @@ describe('Roomy thread', () => {
     const boxes = [...target.querySelectorAll('.rmsg-check')] as HTMLInputElement[]
     boxes[1]?.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true }))
     flushSync()
+    expect(boxes.map((box) => box.checked)).toEqual([false, true, false, false, false])
     expect(target.querySelector('.rmy-foot')?.textContent).toContain('1 selected')
     boxes[3]?.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true, shiftKey: true }))
     flushSync()
+    expect(boxes.map((box) => box.checked)).toEqual([false, true, true, true, false])
     expect(target.querySelector('.rmy-foot')?.textContent).toContain('3 selected')
 
     const importer = target.querySelector('.rmy-acts .btn-p') as HTMLButtonElement