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 799fff2e..988b6296 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
@@ -170,7 +170,7 @@ public class TIFFImageReaderTest extends ImageReaderAbstractTest<TIFFImageReader
                 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.tif"), 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/jpeg-lossless-24bit-rgb b/imageio/imageio-tiff/src/test/resources/tiff/jpeg-lossless-24bit-rgb.tif
similarity index 100%
rename from imageio/imageio-tiff/src/test/resources/tiff/jpeg-lossless-24bit-rgb
rename to imageio/imageio-tiff/src/test/resources/tiff/jpeg-lossless-24bit-rgb.tif