diff --git a/others/lru_cache.cpp b/others/lru_cache.cpp
index 368de4e5f..6a113b287 100644
--- a/others/lru_cache.cpp
+++ b/others/lru_cache.cpp
@@ -188,7 +188,7 @@ static void test_2() {
 
     log("Running Test-2...");
 
-    lru_cache::LRUCache cache(4);
+    others::lru_cache::LRUCache cache(4);
     cache.refer(1);
     cache.refer(1);
     cache.refer(1);