diff --git a/lib/gradebook/grade_calculation.php b/lib/grade/grade_calculation.php
similarity index 100%
rename from lib/gradebook/grade_calculation.php
rename to lib/grade/grade_calculation.php
diff --git a/lib/gradebook/grade_category.php b/lib/grade/grade_category.php
similarity index 100%
rename from lib/gradebook/grade_category.php
rename to lib/grade/grade_category.php
diff --git a/lib/gradebook/grade_item.php b/lib/grade/grade_item.php
similarity index 100%
rename from lib/gradebook/grade_item.php
rename to lib/grade/grade_item.php
diff --git a/lib/gradebook/grade_object.php b/lib/grade/grade_object.php
similarity index 100%
rename from lib/gradebook/grade_object.php
rename to lib/grade/grade_object.php