diff --git a/src/UglyToad.PdfPig/Images/ColorSpaceDetailsByteConverter.cs b/src/UglyToad.PdfPig/Images/ColorSpaceDetailsByteConverter.cs
index ad50d3ae..00d91e30 100644
--- a/src/UglyToad.PdfPig/Images/ColorSpaceDetailsByteConverter.cs
+++ b/src/UglyToad.PdfPig/Images/ColorSpaceDetailsByteConverter.cs
@@ -75,7 +75,7 @@ private static Span<byte> UnpackComponents(Span<byte> input, int bitsPerComponen
 
             // TODO - 1bpc + DeviceGray is required for JBIG2 but needs to be investigated
             // Why is this required? This does not belong here imo
-            if (bitsPerComponent == 1 && colorSpace == ColorSpace.DeviceGray)
+            if (bitsPerComponent == 1 && colorSpace != ColorSpace.Indexed)
             {
                 foreach (byte b in input)
                 {