diff --git a/LanguageHelper.cpp b/LanguageHelper.cpp
index 0f55977..6ebe82d 100644
--- a/LanguageHelper.cpp
+++ b/LanguageHelper.cpp
@@ -72,13 +72,22 @@ QString LanguageHelper::ocrUiToCode (const QString &text) const {
   return ocrLanguages_.value (text, text);
 }
 
-QString LanguageHelper::translateForOcrCode (const QString &text) const {
-  QString ocrUi = ocrUiToCode (text);
-  QString translate = translateCodeToUi (ocrUi);
-  if (translate == ocrUi) {
-    translate = "auto";
+QString LanguageHelper::ocrToTranslateCodes (const QString &text) const {
+  QString ocrUi = ocrCodeToUi (text);
+  QString translateCode = translateUiToCode (ocrUi);
+  if (translateCode == ocrUi) {
+    translateCode = "auto";
   }
-  return translate;
+  return translateCode;
+}
+
+QString LanguageHelper::translateToOcrCodes (const QString &text) const {
+  QString translateUi = translateCodeToUi (text);
+  QString ocrCode = ocrUiToCode (translateUi);
+  if (translateUi == ocrCode) {
+    return QString ();
+  }
+  return ocrCode;
 }
 
 void LanguageHelper::init () {
diff --git a/LanguageHelper.h b/LanguageHelper.h
index be8d7f7..ac04d86 100644
--- a/LanguageHelper.h
+++ b/LanguageHelper.h
@@ -19,7 +19,8 @@ class LanguageHelper {
     QString translateUiToCode (const QString &text) const;
     QString ocrCodeToUi (const QString &text) const;
     QString ocrUiToCode (const QString &text) const;
-    QString translateForOcrCode (const QString &text) const;
+    QString ocrToTranslateCodes (const QString &text) const;
+    QString translateToOcrCodes (const QString &text) const;
 
     void updateAvailableOcrLanguages ();
 
diff --git a/SelectionDialog.cpp b/SelectionDialog.cpp
index ec63fce..7024055 100644
--- a/SelectionDialog.cpp
+++ b/SelectionDialog.cpp
@@ -90,7 +90,7 @@ bool SelectionDialog::eventFilter (QObject *object, QEvent *event) {
         }
         item.ocrLanguage = dictionary_.ocrUiToCode (action->text ());
         ST_ASSERT (!item.ocrLanguage.isEmpty ());
-        item.sourceLanguage = dictionary_.translateForOcrCode (item.ocrLanguage);
+        item.sourceLanguage = dictionary_.ocrToTranslateCodes (item.ocrLanguage);
         ST_ASSERT (!item.sourceLanguage.isEmpty ());
       }
       emit selected (item);
diff --git a/SettingsEditor.cpp b/SettingsEditor.cpp
index b5887aa..5d2dd89 100644
--- a/SettingsEditor.cpp
+++ b/SettingsEditor.cpp
@@ -127,7 +127,7 @@ void SettingsEditor::saveSettings () const {
   settings.setValue (translationDebugMode, ui->translatorDebugCheck->isChecked ());
   QString trLanguage = dictionary_.translateUiToCode (ui->translateLangCombo->currentText ());
   settings.setValue (translationLanguage, trLanguage);
-  QString sourceLanguageVal = dictionary_.translateForOcrCode (ocrLanguage);
+  QString sourceLanguageVal = dictionary_.ocrToTranslateCodes (ocrLanguage);
   settings.setValue (sourceLanguage, sourceLanguageVal);
   settings.setValue (translationTimeout, ui->translateTimeoutSpin->value ());