diff --git a/apps/common/main/lib/util/LanguageInfo.js b/apps/common/main/lib/util/LanguageInfo.js
index aa4925e96d..4af949a961 100644
--- a/apps/common/main/lib/util/LanguageInfo.js
+++ b/apps/common/main/lib/util/LanguageInfo.js
@@ -441,20 +441,30 @@ Common.util.LanguageInfo = new(function() {
         0x0433 : ["ven-ZA", "South Africa", "South Africa"]
     };
 
+    var defLanguages = {
+        'ar': 0x0401, // ar-SA
+        'az': 0x042C, // az-Latn-AZ
+        'en': 0x0409, // en-US
+        'sr': 0x241A, // sr-Latn-RS
+        'zh': 0x0004, // zh-Hans
+    };
+
+    var _getLocalLanguageCode = function(name) {
+        if (name) {
+            for (var code in localLanguageName) {
+                if (localLanguageName[code][0].toLowerCase()===name.toLowerCase())
+                    return code;
+            }
+        }
+        return null;
+    };
+
     return {
         getLocalLanguageName: function(code) {
             return localLanguageName[code] || ['', code];
         },
 
-        getLocalLanguageCode: function(name) {
-            if (name) {
-                for (var code in localLanguageName) {
-                    if (localLanguageName[code][0].toLowerCase()===name.toLowerCase())
-                        return code;
-                }
-            }
-            return null;
-        },
+        getLocalLanguageCode: _getLocalLanguageCode,
 
         /**
          * @typedef {Object} LangDisplayName
@@ -490,6 +500,14 @@ Common.util.LanguageInfo = new(function() {
             return null;
         },
 
+        getDefaultLanguageCode: function(name) {
+            name = name.toLowerCase();
+            if (defLanguages[name])
+                return defLanguages[name];
+            name += '-' + name.toUpperCase();
+            return _getLocalLanguageCode(name);
+        },
+
         getLanguages: function() {
             return localLanguageName;
         }
diff --git a/apps/documenteditor/main/app/controller/Main.js b/apps/documenteditor/main/app/controller/Main.js
index 3349f1136b..2b93f81099 100644
--- a/apps/documenteditor/main/app/controller/Main.js
+++ b/apps/documenteditor/main/app/controller/Main.js
@@ -2824,10 +2824,14 @@ define([
                 arr = []; // system languages can be 'en'... (MacOs)
                 sLangs.forEach(function(lang) {
                     let rec = _.findWhere(me.languages, {value: lang});
+                    if (!rec) {
+                        rec = Common.util.LanguageInfo.getDefaultLanguageCode(lang);
+                        rec && (rec = _.findWhere(me.languages, {value: Common.util.LanguageInfo.getLocalLanguageName(rec)[0]}));
+                    }
                     if (!rec)
                         rec = _.find(me.languages, function(item) {
-                        return item.spellcheck && (item.value.indexOf(lang.toLowerCase())===0);
-                    });
+                            return item.spellcheck && (item.value.indexOf(lang.toLowerCase())===0);
+                        });
                     if (!rec)
                         rec = _.find(me.languages, function(item) {
                             return (item.value.indexOf(lang.toLowerCase())===0);
diff --git a/apps/presentationeditor/main/app/controller/Main.js b/apps/presentationeditor/main/app/controller/Main.js
index b5425b4ae0..6ada4b9277 100644
--- a/apps/presentationeditor/main/app/controller/Main.js
+++ b/apps/presentationeditor/main/app/controller/Main.js
@@ -2374,6 +2374,10 @@ define([
                 arr = []; // system languages can be 'en'... (MacOs)
                 sLangs.forEach(function(lang) {
                     let rec = _.findWhere(me.languages, {value: lang});
+                    if (!rec) {
+                        rec = Common.util.LanguageInfo.getDefaultLanguageCode(lang);
+                        rec && (rec = _.findWhere(me.languages, {value: Common.util.LanguageInfo.getLocalLanguageName(rec)[0]}));
+                    }
                     if (!rec)
                         rec = _.find(me.languages, function(item) {
                             return item.spellcheck && (item.value.indexOf(lang.toLowerCase())===0);
diff --git a/apps/spreadsheeteditor/main/app/controller/Main.js b/apps/spreadsheeteditor/main/app/controller/Main.js
index f8b9a13adc..3d520e2413 100644
--- a/apps/spreadsheeteditor/main/app/controller/Main.js
+++ b/apps/spreadsheeteditor/main/app/controller/Main.js
@@ -2940,6 +2940,11 @@ define([
                 arr = []; // system languages can be 'en'... (MacOs)
                 sLangs.forEach(function(lang) {
                     let rec = me.languages.indexOf(Common.util.LanguageInfo.getLocalLanguageCode(lang).toString())<0 ? null : lang;
+                    if (!rec) {
+                        rec = Common.util.LanguageInfo.getDefaultLanguageCode(lang);
+                        rec = rec && me.languages.indexOf(rec.toString())>-1 ? rec : null;
+                        rec && (rec = Common.util.LanguageInfo.getLocalLanguageName(parseInt(rec))[0]);
+                    }
                     if (!rec) {
                         rec = _.find(me.languages, function(code) {
                             return (Common.util.LanguageInfo.getLocalLanguageName(parseInt(code))[0].indexOf(lang.toLowerCase())===0);