diff --git a/op-node/chaincfg/chains.go b/op-node/chaincfg/chains.go
index b16e9b802ae7..01c6b2428fbb 100644
--- a/op-node/chaincfg/chains.go
+++ b/op-node/chaincfg/chains.go
@@ -2,6 +2,7 @@ package chaincfg
 
 import (
 	"fmt"
+	"sort"
 	"strings"
 
 	"github.com/ethereum-optimism/superchain-registry/superchain"
@@ -36,6 +37,7 @@ func AvailableNetworks() []string {
 	for _, cfg := range superchain.OPChains {
 		networks = append(networks, cfg.Chain+"-"+cfg.Superchain)
 	}
+	sort.Strings(networks)
 	return networks
 }