diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go
index ce535d294..6e66f91b6 100644
--- a/eth/downloader/downloader_test.go
+++ b/eth/downloader/downloader_test.go
@@ -830,7 +830,7 @@ func testCancel(t *testing.T, protocol int, mode SyncMode) {
 		t.Fatalf("failed to synchronise blocks: %v", err)
 	}
 
-	time.Sleep(40 * time.Second)
+	time.Sleep(45 * time.Second)
 
 	tester.downloader.Cancel()
 	if !tester.downloader.queue.Idle() {