diff --git a/CHANGES.md b/CHANGES.md
index 692cdc94f..24fd5c461 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -57,6 +57,8 @@
   filenames containing spaces.
 * Fixed two separate bugs in KakaduNativeProcessor that both caused empty
   regions to appear in certain images.
+* Fixed overly restrictive signature verification in KakaduDemoProcessor and
+  OpenJpegProcessor that could cause errors with some valid images.
 * Fixed TurboJpegProcessor not respecting the `processor.background_color`
   configuration key.
 * Fixed the `PurgeItemFromCache` API method not working with S3Cache and
diff --git a/src/main/java/edu/illinois/library/cantaloupe/processor/codec/jpeg2000/JPEG2000MetadataReader.java b/src/main/java/edu/illinois/library/cantaloupe/processor/codec/jpeg2000/JPEG2000MetadataReader.java
index 9889f82e3..0961eb586 100644
--- a/src/main/java/edu/illinois/library/cantaloupe/processor/codec/jpeg2000/JPEG2000MetadataReader.java
+++ b/src/main/java/edu/illinois/library/cantaloupe/processor/codec/jpeg2000/JPEG2000MetadataReader.java
@@ -113,8 +113,7 @@ private static SegmentMarker forBytes(byte[] twoBytes) {
 
     private static final byte[] JP2_SIGNATURE = new byte[] {
             0x00, 0x00, 0x00, 0x0c, 0x6a, 0x50, 0x20, 0x20, 0x0d, 0x0a,
-            (byte) 0x87, 0x0a, 0x00, 0x00, 0x00, 0x14, 0x66, 0x74, 0x79, 0x70,
-            0x6a, 0x70, 0x32 };
+            (byte) 0x87, 0x0a };
 
     private static final byte[] IPTC_UUID = new byte[] {
             (byte) 0x33, (byte) 0xc7, (byte) 0xa4, (byte) 0xd2, (byte) 0xb8,