diff --git a/lib/capybara/driver/base.rb b/lib/capybara/driver/base.rb
index 83fd58e2..414fc44e 100644
--- a/lib/capybara/driver/base.rb
+++ b/lib/capybara/driver/base.rb
@@ -20,31 +20,31 @@ class Capybara::Driver::Base
   end
 
   def execute_script(script)
-    raise Capybara::NotSupportedByDriverError
+    raise Capybara::NotSupportedByDriverError, 'Capybara::Driver::Base#execute_script'
   end
 
   def evaluate_script(script)
-    raise Capybara::NotSupportedByDriverError
+    raise Capybara::NotSupportedByDriverError, 'Capybara::Driver::Base#evaluate_script'
   end
 
   def save_screenshot(path, options={})
-    raise Capybara::NotSupportedByDriverError
+    raise Capybara::NotSupportedByDriverError, 'Capybara::Driver::Base#save_screenshot'
   end
 
   def response_headers
-    raise Capybara::NotSupportedByDriverError
+    raise Capybara::NotSupportedByDriverError, 'Capybara::Driver::Base#response_headers'
   end
 
   def status_code
-    raise Capybara::NotSupportedByDriverError
+    raise Capybara::NotSupportedByDriverError, 'Capybara::Driver::Base#status_code'
   end
 
   def within_frame(frame_handle)
-    raise Capybara::NotSupportedByDriverError
+    raise Capybara::NotSupportedByDriverError, 'Capybara::Driver::Base#within_frame'
   end
 
   def within_window(handle)
-    raise Capybara::NotSupportedByDriverError
+    raise Capybara::NotSupportedByDriverError, 'Capybara::Driver::Base#within_window'
   end
 
   def invalid_element_errors