diff --git a/cmd/devp2p/internal/ethtest/chain.go b/cmd/devp2p/internal/ethtest/chain.go
index 689667a56b..2017f628e5 100644
--- a/cmd/devp2p/internal/ethtest/chain.go
+++ b/cmd/devp2p/internal/ethtest/chain.go
@@ -217,7 +217,7 @@ func (c *Chain) GetHeaders(req *eth.GetBlockHeadersPacket) ([]*types.Header, err
 	}
 	if req.Reverse {
 		for i := 1; i < int(req.Amount); i++ {
-			blockNumber -= (1 - req.Skip)
+			blockNumber -= (1 + req.Skip)
 			headers[i] = c.blocks[blockNumber].Header()
 		}
 		return headers, nil