diff --git a/library/src/main/java/com/google/android/exoplayer/hls/HlsChunkSource.java b/library/src/main/java/com/google/android/exoplayer/hls/HlsChunkSource.java
index b58350024f..88c729f495 100644
--- a/library/src/main/java/com/google/android/exoplayer/hls/HlsChunkSource.java
+++ b/library/src/main/java/com/google/android/exoplayer/hls/HlsChunkSource.java
@@ -393,11 +393,8 @@ public class HlsChunkSource {
       byte[] secretKey = new byte[data.bytesLeft()];
       data.readBytes(secretKey, 0, secretKey.length);
 
-      int ivParsed = Integer.parseInt(iv, 16);
-      String iv = String.format("%032X", ivParsed);
-
       byte[] ivData = new BigInteger(iv, 16).toByteArray();
-      byte[] ivDataWithPadding = new byte[iv.length() / 2];
+      byte[] ivDataWithPadding = new byte[16];
       System.arraycopy(ivData, 0, ivDataWithPadding, ivDataWithPadding.length - ivData.length,
           ivData.length);