diff --git a/app/models/cmtool/contact_form.rb b/app/models/cmtool/contact_form.rb
index 09b6a22..bc767ac 100644
--- a/app/models/cmtool/contact_form.rb
+++ b/app/models/cmtool/contact_form.rb
@@ -6,5 +6,6 @@ module Cmtool
     property :email
     property :phone
     property :body
+    validates :email, presence: true
   end
 end