diff --git a/src/main/scala/io/github/leibnizhu/tinylsm/utils/PrefixBloomBuilder.scala b/src/main/scala/io/github/leibnizhu/tinylsm/utils/PrefixBloom.scala
similarity index 97%
rename from src/main/scala/io/github/leibnizhu/tinylsm/utils/PrefixBloomBuilder.scala
rename to src/main/scala/io/github/leibnizhu/tinylsm/utils/PrefixBloom.scala
index 5a51e35..e627e27 100644
--- a/src/main/scala/io/github/leibnizhu/tinylsm/utils/PrefixBloomBuilder.scala
+++ b/src/main/scala/io/github/leibnizhu/tinylsm/utils/PrefixBloom.scala
@@ -72,7 +72,7 @@ class PrefixBloomBuilder(prefixLen: Option[Int], delimiter: Option[Byte]) {
   def build(): PrefixBloom = {
     val bitsPerKey = Bloom.bloomBitsPerKey(keyHashes.length, PrefixBloomBuilder.bloomFPRate)
     val bloomFilter = Bloom(keyHashes.toArray, bitsPerKey)
-    new PrefixBloom(prefixLen, delimiter, bloom = bloomFilter)
+    new PrefixBloom(prefixLen, delimiter, bloomFilter)
   }
 }