diff --git a/EduNetworkBuilder/LanguageString.cs b/EduNetworkBuilder/LanguageString.cs
index 38f3645..7c615c8 100644
--- a/EduNetworkBuilder/LanguageString.cs
+++ b/EduNetworkBuilder/LanguageString.cs
@@ -53,6 +53,14 @@ namespace EduNetworkBuilder
             tag_type = tag;
         }
 
+        public bool Equals(LanguageString compareWith)
+        {
+            if (text != compareWith.text) return false;
+            if (tag_type != compareWith.tag_type) return false;
+            if (language != compareWith.language) return false;
+            return true;
+        }
+
         public void Save(XmlWriter writer)
         {
             writer.WriteElementString(language+"_" + tag_type, text);