diff --git a/lib/uk_planning_scraper.rb b/lib/uk_planning_scraper.rb
index 0718905..d011469 100644
--- a/lib/uk_planning_scraper.rb
+++ b/lib/uk_planning_scraper.rb
@@ -5,7 +5,7 @@ require 'uk_planning_scraper/northgate'
 require 'logger'
 
 module UKPlanningScraper
-  class SystemNotSupportedError < StandardError
+  class SystemNotSupported < StandardError
   end
   
   class AuthorityNotFound < StandardError
diff --git a/lib/uk_planning_scraper/authority.rb b/lib/uk_planning_scraper/authority.rb
index 56ad8ac..f99e311 100644
--- a/lib/uk_planning_scraper/authority.rb
+++ b/lib/uk_planning_scraper/authority.rb
@@ -45,7 +45,7 @@ module UKPlanningScraper
       when 'northgate'
         apps = scrape_northgate(params, options)
       else
-        raise SystemNotSupportedError.new("Planning system not supported for #{@name} at URL: #{@url}")
+        raise SystemNotSupported.new("Planning system not supported for #{@name} at URL: #{@url}")
       end
       
       # Post processing