diff --git a/lib/pact_broker/locale/en.yml b/lib/pact_broker/locale/en.yml
index 1c8f31a21..222d32b27 100644
--- a/lib/pact_broker/locale/en.yml
+++ b/lib/pact_broker/locale/en.yml
@@ -10,6 +10,7 @@ en:
     non_templated_host?: "cannot have a template parameter in the host"
     pacticipant_exists?: "does not match an existing pacticipant"
 
+
   pact_broker:
     messages:
       response_body_hidden: For security purposes, the response details are not logged. To enable response logging, configure the webhook_host_whitelist property. See %{base_url}/doc/webhooks#whitelist for more information.
@@ -53,6 +54,9 @@ en:
         $ curl -v -XPOST -H "Content-Type: application/json" -d "{\"name\": \"%{new_name}\"}" %{create_pacticipant_url}
         If the pact broker requires basic authentication, add '-u <username:password>' to the command.
         To disable this check, set `check_for_potential_duplicate_pacticipant_names` to false in the configuration.
+      new_line_in_url_path: URL path cannot contain a new line character.
+      tab_in_url_path: URL path cannot contain a tab character.
+
       "400":
         title: 400 Malformed Request
         message: The request was malformed and could not be processed.
diff --git a/lib/rack/pact_broker/invalid_uri_protection.rb b/lib/rack/pact_broker/invalid_uri_protection.rb
index c9fff3454..c8199c151 100644
--- a/lib/rack/pact_broker/invalid_uri_protection.rb
+++ b/lib/rack/pact_broker/invalid_uri_protection.rb
@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 
 require 'uri'
+require 'pact_broker/messages'
+
 
 # This class is for https://github.com/pact-foundation/pact_broker/issues/101
 # curl -i "http://127.0.0.1:9292/<script>"
@@ -8,6 +10,8 @@
 module Rack
   module PactBroker
     class InvalidUriProtection
+      include ::PactBroker::Messages
+
       def initialize app
         @app = app
       end
@@ -43,9 +47,9 @@ def parse uri
       def validate(uri)
         decoded_path = URI.decode(uri.path)
         if decoded_path.include?("\n")
-          'URL path cannot contain a new line character.'
+          message('errors.new_line_in_url_path')
         elsif decoded_path.include?("\t")
-          'URL path cannot contain a tab character.'
+          message('errors.tab_in_url_path')
         end
       end
     end
diff --git a/spec/lib/rack/pact_broker/invalid_uri_protection_spec.rb b/spec/lib/rack/pact_broker/invalid_uri_protection_spec.rb
index 5296dc5cf..c3692d82a 100644
--- a/spec/lib/rack/pact_broker/invalid_uri_protection_spec.rb
+++ b/spec/lib/rack/pact_broker/invalid_uri_protection_spec.rb
@@ -32,6 +32,7 @@ module PactBroker
 
           it "returns a 422" do
             expect(subject.status).to eq 422
+            expect(subject.body).to include "new line"
           end
         end
 
@@ -40,6 +41,7 @@ module PactBroker
 
           it "returns a 422" do
             expect(subject.status).to eq 422
+            expect(subject.body).to include "tab"
           end
         end
       end