diff --git a/eth/downloader/queue_test.go b/eth/downloader/queue_test.go
index 854acf3d8f..120e3f9d2d 100644
--- a/eth/downloader/queue_test.go
+++ b/eth/downloader/queue_test.go
@@ -36,13 +36,13 @@ import (
 )
 
 // makeChain creates a chain of n blocks starting at and including parent.
-// the returned hash chain is ordered head->parent. In addition, every 3rd block
-// contains a transaction and every 5th an uncle to allow testing correct block
-// reassembly.
+// The returned hash chain is ordered head->parent.
+// If empty is false, every second block (i%2==0) contains one transaction.
+// No uncles are added.
 func makeChain(n int, seed byte, parent *types.Block, empty bool) ([]*types.Block, []types.Receipts) {
 	blocks, receipts := core.GenerateChain(params.TestChainConfig, parent, ethash.NewFaker(), testDB, n, func(i int, block *core.BlockGen) {
 		block.SetCoinbase(common.Address{seed})
-		// Add one tx to every secondblock
+		// Add one tx to every second block
 		if !empty && i%2 == 0 {
 			signer := types.MakeSigner(params.TestChainConfig, block.Number(), block.Timestamp())
 			tx, err := types.SignTx(types.NewTransaction(block.TxNonce(testAddress), common.Address{seed}, big.NewInt(1000), params.TxGas, block.BaseFee(), nil), signer, testKey)