--- groff_mm.man	2011-10-09 22:44:03.375000000 +0400
+++ groff_mm_new.man	2011-10-13 01:22:58.515625000 +0400
@@ -3084,6 +3084,22 @@
 .RE
 .
 .TP
+.B Hm
+Hyphenation mode used when hyphenation is on (see
+.B Hy
+register).
+This register can assume numbers from\~0 to\~15 and its value is used as
+the argument to 
+.BR groff 's 
+.B .hy 
+request,
+which is described in the
+.BR groff
+.B info 
+file.
+The default value is\~14.
+.
+.TP
 .B Hps
 Heading pre-space level.
 If the heading level is less than or equal to
@@ -3156,9 +3172,11 @@
 .IP
 .TS
 tab(@);
-l l.
+l lx.
 address@hidden hyphenation
address@hidden on, set to value\~14
address@hidden
+hyphenation on, set to the value stored in the register Hm.
+T}
 .TE
 .RE
 .