diff --git a/src/de/mas/wiiu/jnus/utils/cryptography/NUSDecryption.java b/src/de/mas/wiiu/jnus/utils/cryptography/NUSDecryption.java
index 4a048de..b485989 100644
--- a/src/de/mas/wiiu/jnus/utils/cryptography/NUSDecryption.java
+++ b/src/de/mas/wiiu/jnus/utils/cryptography/NUSDecryption.java
@@ -107,7 +107,7 @@ public class NUSDecryption extends AESDecryption {
             ByteArrayBuffer overflow = new ByteArrayBuffer(BLOCKSIZE);
 
             // We can only decrypt multiples of 16. So we need to align it.
-            long toRead = Utils.align(filesize + 15, 16);
+            long toRead = Utils.align(filesize, 16);
 
             do {