fix method overrides a parent method but renames a param

[GradPV]

Hey!

Type: code quality

Link to issue: #194

In raising this pull request, I confirm the following (please check boxes):

• [ ✅] I have read and understood the Contributing Guidelines.
• [ ✅] I have checked that another pull request for this purpose does not exist.
• [ ➖] I wrote some tests for this PR.

Small description of change:
Follow naming for successor from parent - no new logic, so I only ran existing unit tests

The tests have been successfully run with PHPUnit! Here's a summary:

•  Total Tests: 494
•  Assertions: 925
•  Skipped Tests: 3