diff --git a/paimon-common/src/main/java/org/apache/paimon/utils/BloomFilter64.java b/paimon-common/src/main/java/org/apache/paimon/utils/BloomFilter64.java
index 8554c9d03ab5e..5a4be5a45f050 100644
--- a/paimon-common/src/main/java/org/apache/paimon/utils/BloomFilter64.java
+++ b/paimon-common/src/main/java/org/apache/paimon/utils/BloomFilter64.java
@@ -108,8 +108,8 @@ public int bitSize() {
         }
 
         public void toByteArray(byte[] bytes, int offset, int length) {
-            for (int i = 0; i < length; i++) {
-                bytes[offset + i] = data[this.offset + i];
+            if (length >= 0) {
+                System.arraycopy(data, this.offset, bytes, offset, length);
             }
         }
     }