diff --git a/src/i18n/locale/cmucl.pot b/src/i18n/locale/cmucl.pot
index fe5e87636c4f3e5ae7293bd29d8d9a30190c4146..361d385f4513e0167b8cf2309dad144e21de9108 100644
--- a/src/i18n/locale/cmucl.pot
+++ b/src/i18n/locale/cmucl.pot
@@ -3893,10 +3893,12 @@ msgstr ""
 msgid ""
 "Given a string, returns a copy of the string with the first\n"
 "  character of each ``word'' converted to upper-case, and remaining\n"
-"  chars in the word converted to lower case. A ``word'' is defined\n"
-"  to be a string of case-modifiable characters delimited by\n"
-"  non-case-modifiable chars.  Casing is :simple or :full for\n"
-"  simple or full case conversion, respectively."
+"  chars in the word converted to lower case. Casing is :simple or\n"
+"  :full for simple or full case conversion, respectively.  If\n"
+"  Unicode-Word-Break is non-Nil, then the Unicode word-breaking\n"
+"  algorithm is used to determine the word boundaries.  Otherwise, A\n"
+"  ``word'' is defined to be a string of case-modifiable characters\n"
+"  delimited by non-case-modifiable chars.  "
 msgstr ""
 
 #: src/code/string.lisp