diff --git a/toonz/sources/include/tproperty.h b/toonz/sources/include/tproperty.h
index 502165c..f7c2ea5 100644
--- a/toonz/sources/include/tproperty.h
+++ b/toonz/sources/include/tproperty.h
@@ -71,7 +71,6 @@ public:
 
   TProperty(std::string name):
     m_name(name),
-    m_uiNameOrig(name),
     m_visible(true),
     m_qstringName(QString::fromStdString(name))
     { }
@@ -80,10 +79,6 @@ public:
 
   virtual TProperty *clone() const = 0;
 
-  // Used only for translation in Qt. Original not translated name.
-  const std::string& getUINameOrig() const { return m_uiNameOrig; }
-  void setUINameOrig(const std::string &str) { m_uiNameOrig = str; }
-
   // Used only for translation in Qt
   QString getQStringName() const { return m_qstringName; }
   void setQStringName(const QString &str) { m_qstringName = str; }
@@ -108,7 +103,6 @@ public:
 
 private:
   TStringId m_name;
-  std::string m_uiNameOrig;
   QString m_qstringName;
   std::string m_id;
   std::vector<Listener *> m_listeners;