--- a/testing/web-platform/tests/tools/webdriver/webdriver/error.py
+++ b/testing/web-platform/tests/tools/webdriver/webdriver/error.py
@@ -140,19 +140,20 @@ class UnknownMethodException(WebDriverEx
     status_code = "unknown method"
 
 
 class UnsupportedOperationException(WebDriverException):
     http_status = 500
     status_code = "unsupported operation"
 
 
-def get(status_code):
-    """Gets exception from `status_code`, falling back to
+def get(error_code):
+    """
+    Gets exception from `error_code`, falling back to
     ``WebDriverException`` if it is not found.
     """
-    return _errors.get(status_code, WebDriverException)
+    return _errors.get(error_code, WebDriverException)
 
 
 _errors = collections.defaultdict()
 for item in locals().values():
     if type(item) == type and issubclass(item, WebDriverException):
         _errors[item.status_code] = item