diff --git a/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.cs b/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.cs
index 5f0b08ed1..adb928654 100644
--- a/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.cs
+++ b/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.cs
@@ -36,13 +36,16 @@ namespace SixLabors.ImageSharp.Tests.Formats.Jpg
                 TestImages.Jpeg.Baseline.Jpeg420Small,
                 TestImages.Jpeg.Baseline.Jpeg444,
                 TestImages.Jpeg.Baseline.Bad.BadEOF,
-                TestImages.Jpeg.Baseline.Bad.ExifUndefType
+                TestImages.Jpeg.Baseline.Bad.ExifUndefType,
+
+                
             };
 
         public static string[] ProgressiveTestJpegs =
             {
                 TestImages.Jpeg.Progressive.Fb, TestImages.Jpeg.Progressive.Progress,
-                TestImages.Jpeg.Progressive.Festzug, TestImages.Jpeg.Progressive.Bad.BadEOF
+                TestImages.Jpeg.Progressive.Festzug, TestImages.Jpeg.Progressive.Bad.BadEOF,
+                TestImages.Jpeg.Issues.ProgressiveWithTooManyCoefficients178
             };
 
         public const PixelTypes CommonNonDefaultPixelTypes = PixelTypes.Rgba32 | PixelTypes.Argb32 | PixelTypes.RgbaVector;
@@ -136,7 +139,7 @@ namespace SixLabors.ImageSharp.Tests.Formats.Jpg
         }
 
         [Theory]
-        [WithFile(TestImages.Jpeg.Issues.Issue214CriticalEOF, PixelTypes.Rgba32)]
+        [WithFile(TestImages.Jpeg.Issues.CriticalEOF214, PixelTypes.Rgba32)]
         public void DecodeBaselineJpeg_CriticalEOF_ShouldThrow_Orig<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
diff --git a/tests/ImageSharp.Tests/TestImages.cs b/tests/ImageSharp.Tests/TestImages.cs
index c36f02259..c09cefa48 100644
--- a/tests/ImageSharp.Tests/TestImages.cs
+++ b/tests/ImageSharp.Tests/TestImages.cs
@@ -114,9 +114,9 @@ namespace SixLabors.ImageSharp.Tests
 
             public class Issues
             {
-                public const string Issue214CriticalEOF = "Jpg/issues/Issue214-CriticalEOF .jpg";
+                public const string CriticalEOF214 = "Jpg/issues/Issue214-CriticalEOF.jpg";
                 public const string Issue159Girl = "Jpg/issues/Issue159Girl.jpg";
-                public const string Issue178Lemon = "Jpg/issues/Issue178.jpg";
+                public const string ProgressiveWithTooManyCoefficients178 = "Jpg/issues/Issue178Lemon-ProgressiveWithTooManyCoefficients.jpg";
             }
 
             public static readonly string[] All = Baseline.All.Concat(Progressive.All).ToArray();
diff --git a/tests/Images/Input/Jpg/issues/Issue178Lemon-ProgressiveWithTooManyCoefficients.jpg b/tests/Images/Input/Jpg/issues/Issue178Lemon-ProgressiveWithTooManyCoefficients.jpg
new file mode 100644
index 000000000..aee0182a6
--- /dev/null
+++ b/tests/Images/Input/Jpg/issues/Issue178Lemon-ProgressiveWithTooManyCoefficients.jpg
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0f8b4a062931424bedc6ce9a6b02fb8eec59cd8a386b09a1c7a790a041cbea89
+size 279270