diff --git a/src/java/org/apache/cassandra/utils/btree/BTree.java b/src/java/org/apache/cassandra/utils/btree/BTree.java
index 1a5d9ae4c58e..a4519b9451f0 100644
--- a/src/java/org/apache/cassandra/utils/btree/BTree.java
+++ b/src/java/org/apache/cassandra/utils/btree/BTree.java
@@ -866,7 +866,7 @@ public void recycle()
         private void cleanup()
         {
             quickResolver = null;
-            Arrays.fill(values, 0, count, null);
+            Arrays.fill(values, null);
             count = 0;
             detected = true;
             auto = true;