diff --git a/i18nlangtag/source/isolang/isolang.cxx b/i18nlangtag/source/isolang/isolang.cxx
index 9d521a499ef4..ecab61113ab1 100644
--- a/i18nlangtag/source/isolang/isolang.cxx
+++ b/i18nlangtag/source/isolang/isolang.cxx
@@ -689,6 +689,7 @@ IsoLanguageCountryEntry const aImplIsoLangEntries[] =
     { LANGUAGE_USER_MINANGKABAU,           "min", "ID", k0    },
     { LANGUAGE_USER_SUNDANESE,             "sun", "ID", k0    },
     { LANGUAGE_USER_YAKA_DRCONGO,          "yaf", "CD", k0    },
+    { LANGUAGE_USER_ENGLISH_KENYA,          "en", "KE", k0    },
     { LANGUAGE_MULTIPLE,                   "mul", ""  , k0    },    // multiple languages, many languages are used
     { LANGUAGE_UNDETERMINED,               "und", ""  , k0    },    // undetermined language, language cannot be identified
     { LANGUAGE_NONE,                       "zxx", ""  , k0    },    // added to ISO 639-2 on 2006-01-11: Used to declare the absence of linguistic information
diff --git a/include/i18nlangtag/lang.h b/include/i18nlangtag/lang.h
index 96df56181159..d3b0ece0bce6 100644
--- a/include/i18nlangtag/lang.h
+++ b/include/i18nlangtag/lang.h
@@ -761,6 +761,7 @@ namespace o3tl
 #define LANGUAGE_USER_MINANGKABAU           LanguageType(0x06A7)
 #define LANGUAGE_USER_SUNDANESE             LanguageType(0x06A8)
 #define LANGUAGE_USER_YAKA_DRCONGO          LanguageType(0x06A9)
+#define LANGUAGE_USER_ENGLISH_KENYA         LanguageType(0xAC09)  /* makeLangID( 0x2B, getPrimaryLanguage( LANGUAGE_ENGLISH_UK)) */
 
 
 /* XXX Add new user defined LCIDs ^^^ there.