diff --git a/service/topology_state_machine.cc b/service/topology_state_machine.cc
index 1b84b3173f..c544780a73 100644
--- a/service/topology_state_machine.cc
+++ b/service/topology_state_machine.cc
@@ -13,7 +13,7 @@ namespace service {
 
 logging::logger tsmlogger("topology_state_machine");
 
-const std::pair<const raft::server_id, replica_state>* topology::find(raft::server_id id) {
+const std::pair<const raft::server_id, replica_state>* topology::find(raft::server_id id) const {
     auto it = normal_nodes.find(id);
     if (it != normal_nodes.end()) {
         return &*it;
diff --git a/service/topology_state_machine.hh b/service/topology_state_machine.hh
index e7de7e4ede..8775a787d1 100644
--- a/service/topology_state_machine.hh
+++ b/service/topology_state_machine.hh
@@ -86,7 +86,7 @@ struct topology {
     std::unordered_map<raft::server_id, request_param> req_param;
 
     // Find only nodes in non 'left' state
-    const std::pair<const raft::server_id, replica_state>* find(raft::server_id id);
+    const std::pair<const raft::server_id, replica_state>* find(raft::server_id id) const;
     // Return true if node exists in any state including 'left' one
     bool contains(raft::server_id id);
 };