diff --git a/converters/img2sixel.1 b/converters/img2sixel.1
index 4e19180a..50005868 100644
--- a/converters/img2sixel.1
+++ b/converters/img2sixel.1
@@ -96,7 +96,7 @@ burkes   -> Burkes' method
 .br
 a_dither -> positionally stable arithmetic dither
 .br
-a_dither -> positionally stable arithmetic xor based dither
+x_dither -> positionally stable arithmetic xor based dither
 .TP 5
 .B \-f \fIFINDTYPE\fP, \-\-find\-largest=\fIFINDTYPE\fP
 choose method for finding the largest dimension of median