diff --git a/brotli4j/src/main/java/com/aayushatharva/brotli4j/encoder/Encoder.java b/brotli4j/src/main/java/com/aayushatharva/brotli4j/encoder/Encoder.java
index fd5793db..eda34bf4 100644
--- a/brotli4j/src/main/java/com/aayushatharva/brotli4j/encoder/Encoder.java
+++ b/brotli4j/src/main/java/com/aayushatharva/brotli4j/encoder/Encoder.java
@@ -70,7 +70,7 @@ public static byte[] compress(byte[] data, int offset, int length, Parameters pa
         int totalOutputSize = 0;
         try {
             encoder.getInputBuffer().put(data, offset, length);
-            encoder.push(EncoderJNI.Operation.FINISH, data.length);
+            encoder.push(EncoderJNI.Operation.FINISH, length);
             while (true) {
                 if (!encoder.isSuccess()) {
                     throw new IOException("encoding failed");