diff --git a/imageio/imageio-tiff/src/test/java/com/twelvemonkeys/imageio/plugins/tiff/TIFFImageReaderTest.java b/imageio/imageio-tiff/src/test/java/com/twelvemonkeys/imageio/plugins/tiff/TIFFImageReaderTest.java
index 5fbfea63..f902c61d 100644
--- a/imageio/imageio-tiff/src/test/java/com/twelvemonkeys/imageio/plugins/tiff/TIFFImageReaderTest.java
+++ b/imageio/imageio-tiff/src/test/java/com/twelvemonkeys/imageio/plugins/tiff/TIFFImageReaderTest.java
@@ -150,10 +150,13 @@ public class TIFFImageReaderTest extends ImageReaderAbstractTest<TIFFImageReader
                 // Separated (CMYK) Planar (PlanarConfiguration: 2)
                 new TestData(getClassLoaderResource("/tiff/depth/flower-separated-planar-08.tif"), new Dimension(73, 43)), // CMYK 8 bit/sample
                 new TestData(getClassLoaderResource("/tiff/depth/flower-separated-planar-16.tif"), new Dimension(73, 43)),  // CMYK 16 bit/sample
+                // JPEG Lossless
                 new TestData(getClassLoaderResource("/tiff/jpeg-lossless-8bit-gray.tif"), new Dimension(512, 512)),  // Lossless JPEG Gray, 8 bit/sample
                 new TestData(getClassLoaderResource("/tiff/jpeg-lossless-12bit-gray.tif"), new Dimension(512, 512)),  // Lossless JPEG Gray, 12 bit/sample
                 new TestData(getClassLoaderResource("/tiff/jpeg-lossless-16bit-gray.tif"), new Dimension(512, 512)),  // Lossless JPEG Gray, 16 bit/sample
-                new TestData(getClassLoaderResource("/tiff/jpeg-lossless-24bit-rgb"), new Dimension(512, 512))  // Lossless JPEG RGB, 8 bit/sample
+                new TestData(getClassLoaderResource("/tiff/jpeg-lossless-24bit-rgb"), new Dimension(512, 512)),  // Lossless JPEG RGB, 8 bit/sample
+                // Custom PIXTIFF ZIP (Compression: 50013)
+                new TestData(getClassLoaderResource("/tiff/pixtiff/40-8bit-gray-zip.tif"), new Dimension(801, 1313))  // ZIP Gray, 8 bit/sample
         );
     }
 
diff --git a/imageio/imageio-tiff/src/test/resources/tiff/pixtiff/40-8bit-gray-zip.tif b/imageio/imageio-tiff/src/test/resources/tiff/pixtiff/40-8bit-gray-zip.tif
new file mode 100644
index 00000000..e3f9c4c0
Binary files /dev/null and b/imageio/imageio-tiff/src/test/resources/tiff/pixtiff/40-8bit-gray-zip.tif differ