diff --git a/mm/damon/dbgfs-test.h b/mm/damon/dbgfs-test.h
index 8f7f32595055943dfb548ce53a58e47d01a85bc5..0bb0d532b15905a0cb2f0ae04784355f6f476688 100644
--- a/mm/damon/dbgfs-test.h
+++ b/mm/damon/dbgfs-test.h
@@ -74,7 +74,7 @@ static void damon_dbgfs_test_set_targets(struct kunit *test)
 	char buf[64];
 
 	/* Make DAMON consider target has no pid */
-	ctx->ops = (struct damon_operations){};
+	damon_select_ops(ctx, DAMON_OPS_PADDR);
 
 	dbgfs_set_targets(ctx, 0, NULL);
 	sprint_target_ids(ctx, buf, 64);
@@ -111,6 +111,8 @@ static void damon_dbgfs_test_set_init_regions(struct kunit *test)
 	int i, rc;
 	char buf[256];
 
+	damon_select_ops(ctx, DAMON_OPS_PADDR);
+
 	dbgfs_set_targets(ctx, 3, NULL);
 
 	/* Put valid inputs and check the results */