diff --git a/app/models/experience.rb b/app/models/experience.rb
index 2579385..0c3460e 100644
--- a/app/models/experience.rb
+++ b/app/models/experience.rb
@@ -56,6 +56,8 @@ class Experience
     fields_to_show.each do |t|
       if (self.fields[t].type.to_s == "String" || self.fields[t].type.to_s == "Object" rescue false)
         fields_to_remove << t if (datas.where(t.to_sym.ne => nil, t.to_sym.ne => "").count == 0 rescue false)
+      elsif t == "duration"
+        fields_to_remove << t if (datas.where(:start_date.ne => nil).count == 0 rescue false)
       else
         fields_to_remove << t if (datas.where(t.to_sym.ne => nil).count == 0 rescue false)
       end