diff --git a/coders/ept.c b/coders/ept.c
index 2ef8de3..85c64cd 100644
--- a/coders/ept.c
+++ b/coders/ept.c
@@ -430,8 +430,8 @@
EPT preview requires that the image is colormapped.
*/
GetQuantizeInfo(&quantize_info);
- quantize_info.dither=IsPaletteImage(write_image,exception) == MagickFalse
- ? MagickTrue : MagickFalse;
+ quantize_info.dither_method=IsPaletteImage(write_image,exception) ==
+ MagickFalse ? RiemersmaDitherMethod : NoDitherMethod;
(void) QuantizeImage(&quantize_info,write_image,exception);
}
write_info->compression=NoCompression;