diff --git a/erpnext/education/report/course_wise_assessment_report/course_wise_assessment_report.py b/erpnext/education/report/course_wise_assessment_report/course_wise_assessment_report.py
index 5badda6..ce58148 100644
--- a/erpnext/education/report/course_wise_assessment_report/course_wise_assessment_report.py
+++ b/erpnext/education/report/course_wise_assessment_report/course_wise_assessment_report.py
@@ -245,5 +245,5 @@
 		assessment_groups = [d.get("value") for d in get_children("Assessment Group",
 			assessment_group) if d.get("value") and not d.get("expandable")]
 	else:
-		assessment_groups = [args.assessment_group]
+		assessment_groups = [assessment_group]
 	return assessment_groups