diff --git a/java/org/brotli/dec/DictionaryData.java b/java/org/brotli/dec/DictionaryData.java
index a65e812..cdff059 100644
--- a/java/org/brotli/dec/DictionaryData.java
+++ b/java/org/brotli/dec/DictionaryData.java
@@ -7,6 +7,7 @@
 package org.brotli.dec;
 
 import java.io.UnsupportedEncodingException;
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 
 /**
@@ -53,7 +54,7 @@ final class DictionaryData {
   static {
     ByteBuffer dictionary = ByteBuffer.allocateDirect(122784);
     unpackDictionaryData(dictionary, DATA0, DATA1, SKIP_FLIP);
-    dictionary.flip();
+    ((Buffer) dictionary).flip();
     Dictionary.setData(dictionary.asReadOnlyBuffer());
   }
 }