diff --git a/i18nlangtag/source/isolang/isolang.cxx b/i18nlangtag/source/isolang/isolang.cxx
index ca511f9989df..612efc294db5 100644
--- a/i18nlangtag/source/isolang/isolang.cxx
+++ b/i18nlangtag/source/isolang/isolang.cxx
@@ -678,6 +678,7 @@ static IsoLanguageCountryEntry const aImplIsoLangEntries[] =
     { LANGUAGE_USER_NARO,                  "nhr", "BW", k0    },
     { LANGUAGE_USER_ILOKO,                 "ilo", "PH", k0    },
     { LANGUAGE_USER_ENGLISH_ZAMBIA,         "en", "ZM", k0    },
+    { LANGUAGE_USER_ENGLISH_SRI_LANKA,      "en", "LK", 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 37dba1cc5123..fb7ee80118bf 100644
--- a/include/i18nlangtag/lang.h
+++ b/include/i18nlangtag/lang.h
@@ -750,6 +750,7 @@ namespace o3tl
 #define LANGUAGE_USER_NARO                  LanguageType(0x06A2)
 #define LANGUAGE_USER_ILOKO                 LanguageType(0x06A3)
 #define LANGUAGE_USER_ENGLISH_ZAMBIA        LanguageType(0xA009)  /* makeLangID( 0x28, getPrimaryLanguage( LANGUAGE_ENGLISH_UK)) */
+#define LANGUAGE_USER_ENGLISH_SRI_LANKA     LanguageType(0xA409)  /* makeLangID( 0x29, getPrimaryLanguage( LANGUAGE_ENGLISH_UK)) */
 
 
 /* XXX Add new user defined LCIDs ^^^ there.
diff --git a/svtools/inc/langtab.hrc b/svtools/inc/langtab.hrc
index 13fb8a89070a..48a6126edc39 100644
--- a/svtools/inc/langtab.hrc
+++ b/svtools/inc/langtab.hrc
@@ -417,7 +417,8 @@ const std::pair<const char*, LanguageType> STR_ARR_SVT_LANGUAGE_TABLE[] =
     { NC_("STR_ARR_SVT_LANGUAGE_TABLE", "Juǀ’hoan") , LANGUAGE_USER_JUHOAN },
     { NC_("STR_ARR_SVT_LANGUAGE_TABLE", "Naro") , LANGUAGE_USER_NARO },
     { NC_("STR_ARR_SVT_LANGUAGE_TABLE", "Iloko") , LANGUAGE_USER_ILOKO },
-    { NC_("STR_ARR_SVT_LANGUAGE_TABLE", "English (Zambia)") , LANGUAGE_USER_ENGLISH_ZAMBIA }
+    { NC_("STR_ARR_SVT_LANGUAGE_TABLE", "English (Zambia)") , LANGUAGE_USER_ENGLISH_ZAMBIA },
+    { NC_("STR_ARR_SVT_LANGUAGE_TABLE", "English (Sri Lanka)") , LANGUAGE_USER_ENGLISH_SRI_LANKA }
 };
 
 #endif