diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go
index f8c6b25851..ec45eb06dd 100644
--- a/eth/downloader/downloader_test.go
+++ b/eth/downloader/downloader_test.go
@@ -1594,13 +1594,13 @@ func testCheckpointEnforcement(t *testing.T, protocol int, mode SyncMode) {
 	tester.newPeer("peer", protocol, chain)
 
 	var expect error
-	if mode == FastSync {
+	if mode == FastSync || mode == LightSync {
 		expect = errUnsyncedPeer
 	}
 	if err := tester.sync("peer", nil, mode); err != expect {
 		t.Fatalf("block sync error mismatch: have %v, want %v", err, expect)
 	}
-	if mode == FastSync {
+	if mode == FastSync || mode == LightSync {
 		assertOwnChain(t, tester, 1)
 	} else {
 		assertOwnChain(t, tester, chain.len())