diff --git a/cache/cache.go b/cache/cache.go
index 96cde8b..6d0b9bd 100644
--- a/cache/cache.go
+++ b/cache/cache.go
@@ -69,12 +69,13 @@ func (sc *ScoreCache) Add(score float64, ip netip.Addr, ts time.Time) {
 func (lc *ScoreCache) Get(ip netip.Addr) (ServerScore, error) {
 	now := time.Now()
 	lc.mu.RLock()
-	defer lc.mu.RUnlock()
 
 	cachedScore, ok := lc.scores[ip]
 	if !ok {
+		lc.mu.RUnlock()
 		return ServerScore{}, newCacheMissError()
 	}
+	lc.mu.RUnlock()
 
 	if now.After(cachedScore.expiresAt) {
 		lc.delete(ip)