Strict warning: Declaration of views_calc_table::pre_render() should be compatible with views_plugin_style::pre_render(&$result)

Strict warning: Declaration of views_calc_table::pre_render() should be compatible with views_plugin_style::pre_render(&$result) in _registry_check_code() (line 291 of /modules/all/views_calc/views_calc_table.inc)

I keep getting the above error in logs