diff --git a/web/src/pages/skill-detail.tsx b/web/src/pages/skill-detail.tsx
index 0a62a00b..7439241e 100644
--- a/web/src/pages/skill-detail.tsx
+++ b/web/src/pages/skill-detail.tsx
@@ -1070,7 +1070,7 @@ export function SkillDetailPage() {
                 {!isFetchingSkill ? (
                   <>
                     <StarButton skillId={skill.id} starCount={skill.starCount} onRequireLogin={requireLogin} />
-                    <SubscribeButton skillId={skill.id} subscriptionCount={(skill as any).subscriptionCount ?? 0} onRequireLogin={requireLogin} />
+                    <SubscribeButton skillId={skill.id} subscriptionCount={(skill as { subscriptionCount?: number }).subscriptionCount ?? 0} onRequireLogin={requireLogin} />
                     <RatingInput skillId={skill.id} onRequireLogin={requireLogin} />
                   </>
                 ) : null}