diff --git a/frontend/src/lib/shared/discussion/MentionDropdown.svelte b/frontend/src/lib/shared/discussion/MentionDropdown.svelte
index 4da12b59..500b9ada 100644
--- a/frontend/src/lib/shared/discussion/MentionDropdown.svelte
+++ b/frontend/src/lib/shared/discussion/MentionDropdown.svelte
@@ -157,7 +157,7 @@ function selectItem(item: Person) {
 				fill="none"
 				stroke="currentColor"
 				stroke-width="2"
-				class="h-4 w-4 shrink-0 text-ink-3"
+				class="h-5 w-5 shrink-0 text-ink-2"
 			>
 				<circle cx="11" cy="11" r="7" />
 				<path d="m20 20-3.5-3.5" stroke-linecap="round" />
diff --git a/frontend/src/lib/shared/discussion/MentionDropdown.svelte.test.ts b/frontend/src/lib/shared/discussion/MentionDropdown.svelte.test.ts
index a6a10dac..f194f54f 100644
--- a/frontend/src/lib/shared/discussion/MentionDropdown.svelte.test.ts
+++ b/frontend/src/lib/shared/discussion/MentionDropdown.svelte.test.ts
@@ -154,6 +154,18 @@ describe('MentionDropdown — search input', () => {
 		expect(input.className).toContain('min-h-[44px]');
 	});
 
+	it('renders the magnifier icon at h-5 w-5 with text-ink-2 (Leonie BLOCKER on PR #629)', async () => {
+		render(MentionDropdown, { props: { model: baseModel() } });
+
+		const icon = document.querySelector('[data-test-search-input]')
+			?.previousElementSibling as SVGElement | null;
+		expect(icon).not.toBeNull();
+		expect(icon!.tagName.toLowerCase()).toBe('svg');
+		expect(icon!.getAttribute('class') ?? '').toContain('h-5');
+		expect(icon!.getAttribute('class') ?? '').toContain('w-5');
+		expect(icon!.getAttribute('class') ?? '').toContain('text-ink-2');
+	});
+
 	it('caps the search input at maxlength=100 (CWE-400 amplification — Nora on PR #629)', async () => {
 		render(MentionDropdown, { props: { model: baseModel() } });