diff --git a/core/src/main/java/org/elasticsearch/common/cache/CacheBuilder.java b/core/src/main/java/org/elasticsearch/common/cache/CacheBuilder.java
index 67c8d508ba5..9813a7ab0f9 100644
--- a/core/src/main/java/org/elasticsearch/common/cache/CacheBuilder.java
+++ b/core/src/main/java/org/elasticsearch/common/cache/CacheBuilder.java
@@ -91,7 +91,7 @@ public class CacheBuilder<K, V> {
     }
 
     public Cache<K, V> build() {
-        Cache<K, V> cache = new Cache();
+        Cache<K, V> cache = new Cache<>();
         if (maximumWeight != -1) {
             cache.setMaximumWeight(maximumWeight);
         }