diff --git a/lucene/core/src/java/org/apache/lucene/store/BufferedChecksumIndexInput.java b/lucene/core/src/java/org/apache/lucene/store/BufferedChecksumIndexInput.java
index d3fb088776e..c91a314ac16 100644
--- a/lucene/core/src/java/org/apache/lucene/store/BufferedChecksumIndexInput.java
+++ b/lucene/core/src/java/org/apache/lucene/store/BufferedChecksumIndexInput.java
@@ -69,4 +69,9 @@ public class BufferedChecksumIndexInput extends ChecksumIndexInput {
   public long length() {
     return main.length();
   }
+
+  @Override
+  public IndexInput clone() {
+    throw new UnsupportedOperationException();
+  }
 }