diff --git a/lib/cloudflare_protected_email_address.rb b/lib/cloudflare_protected_email_address.rb
index 1121e91..78ab441 100644
--- a/lib/cloudflare_protected_email_address.rb
+++ b/lib/cloudflare_protected_email_address.rb
@@ -3,12 +3,13 @@
 require 'cgi'
 
 class CloudflareProtectedEmailAddress
-  def initialize(obfuscated:)
+  def initialize(obfuscated)
     @obfuscated = obfuscated
   end
 
-  def human_readable
-    CGI.unescape(unobfuscated)
+  def unobfuscated
+    return CGI.unescape(escaped_email_address) if CGI.unescape(escaped_email_address).include?('@')
+    obfuscated
   end
 
   private
@@ -20,10 +21,10 @@ def obfuscated_characters
   end
 
   def key
-    @key ||= obfuscated[0..1].hex
+    obfuscated[0..1].hex
   end
 
-  def unobfuscated
+  def escaped_email_address
     obfuscated_characters.reduce('') do |email, encoded_character|
       email + (encoded_character ^ key).to_s(16).prepend('%')
     end