diff --git a/server/store/memory/peer_store.go b/server/store/memory/peer_store.go
index 28e8f26..1c4ab69 100644
--- a/server/store/memory/peer_store.go
+++ b/server/store/memory/peer_store.go
@@ -207,7 +207,7 @@ func (s *peerStore) CollectGarbage(cutoff time.Time) error {
 				}
 			}
 
-			if len(shard.peers[key] == 0) {
+			if len(shard.peers[key]) == 0 {
 				delete(shard.peers, key)
 			}