diff --git a/master/master.go b/master/master.go
index 4426fc2..6355434 100644
--- a/master/master.go
+++ b/master/master.go
@@ -18,8 +18,8 @@ var (
 
 func GetMaster() map[string]any {
 	mu.RLock()
-	defer mu.RUnlock()
 	if cache != nil {
+		mu.RUnlock()
 		return cache
 	}
 	mu.RUnlock()