diff --git a/doc/man/mkvmerge.xml b/doc/man/mkvmerge.xml
index b9c540d7a..edcb35bfb 100644
--- a/doc/man/mkvmerge.xml
+++ b/doc/man/mkvmerge.xml
@@ -1750,8 +1750,8 @@ $ mkvmerge -o out.mkv '(' file.mkv ')'</screen>
      </listitem>
     </varlistentry>
 
-    <varlistentry id="mkvmerge.description.colour_matrix">
-     <term><option>--colour-matrix</option> <parameter>TID:n</parameter></term>
+    <varlistentry id="mkvmerge.description.colour_matrix_coefficients">
+     <term><option>--colour-matrix-coefficients</option> <parameter>TID:n</parameter></term>
      <listitem>
       <para>
        Sets the matrix coefficients of the video used to derive luma and chroma values from red, green and blue color primaries. The