diff --git a/ChangeLog b/ChangeLog
index 74a3d73c41..73bf72702b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-01-29  Rafal Luzynski  <digitalfreak@lingonborough.com>
+
+	[BZ #10871]
+	* localedata/locales/lt_LT (alt_mon): Import from CLDR (nominative
+	case).
+
 2018-01-29  Rafal Luzynski  <digitalfreak@lingonborough.com>
 
 	[BZ #10871]
diff --git a/localedata/locales/lt_LT b/localedata/locales/lt_LT
index a493c32c0f..c935fcf75e 100644
--- a/localedata/locales/lt_LT
+++ b/localedata/locales/lt_LT
@@ -207,6 +207,18 @@ abmon     "Sau";"Vas";/
           "Lie";"Rgp";/
           "Rgs";"Spa";/
           "Lap";"Grd"
+alt_mon   "sausis";/
+          "vasaris";/
+          "kovas";/
+          "balandis";/
+          "gegu<U017E><U0117>";/
+          "bir<U017E>elis";/
+          "liepa";/
+          "rugpj<U016B>tis";/
+          "rugs<U0117>jis";/
+          "spalis";/
+          "lapkritis";/
+          "gruodis"
 mon       "sausio";/
           "vasario";/
           "kovo";/