diff --git a/core/commands/pubsub.go b/core/commands/pubsub.go
index 111ce6804733..0b50c42cd262 100644
--- a/core/commands/pubsub.go
+++ b/core/commands/pubsub.go
@@ -333,7 +333,7 @@ To use, the daemon must be run with '--enable-pubsub-experiment'.
 		}
 
 		peers := n.Floodsub.ListPeers(topic)
-		list := &stringList{make([]string, len(peers), 0)}
+		list := &stringList{make([]string, 0, len(peers))}
 
 		for _, peer := range peers {
 			list.Strings = append(list.Strings, peer.Pretty())