diff --git a/mm/damon/tests/vaddr-kunit.h b/mm/damon/tests/vaddr-kunit.h
index a339d117150fb..3dad8dfd9005f 100644
--- a/mm/damon/tests/vaddr-kunit.h
+++ b/mm/damon/tests/vaddr-kunit.h
@@ -66,7 +66,7 @@ static int __link_vmas(struct maple_tree *mt, struct vm_area_struct *vmas,
 static void damon_test_three_regions_in_vmas(struct kunit *test)
 {
 	static struct mm_struct mm;
-	struct damon_addr_range regions[3] = {0,};
+	struct damon_addr_range regions[3] = {0};
 	/* 10-20-25, 200-210-220, 300-305, 307-330 */
 	struct vm_area_struct vmas[] = {
 		(struct vm_area_struct) {.vm_start = 10, .vm_end = 20},