diff --git a/cmd/devp2p/internal/ethtest/chain.go b/cmd/devp2p/internal/ethtest/chain.go
index b44e6aa36a..36c395cdef 100644
--- a/cmd/devp2p/internal/ethtest/chain.go
+++ b/cmd/devp2p/internal/ethtest/chain.go
@@ -335,7 +335,7 @@ func readAccounts(file string) (map[common.Address]*senderInfo, error) {
 	for addr, acc := range keys {
 		pk, err := crypto.HexToECDSA(common.Bytes2Hex(acc.Key))
 		if err != nil {
-			return nil, fmt.Errorf("unable to read private key for %s: %v", err, addr)
+			return nil, fmt.Errorf("unable to read private key for %s: %v", addr, err)
 		}
 		accounts[addr] = &senderInfo{Key: pk, Nonce: 0}
 	}