diff --git a/nav2_behavior_tree/include/nav2_behavior_tree/bt_service_node.hpp b/nav2_behavior_tree/include/nav2_behavior_tree/bt_service_node.hpp
index a774db43842..d917f711a66 100644
--- a/nav2_behavior_tree/include/nav2_behavior_tree/bt_service_node.hpp
+++ b/nav2_behavior_tree/include/nav2_behavior_tree/bt_service_node.hpp
@@ -85,9 +85,8 @@ class BtServiceNode : public BT::ActionNodeBase
         node_->get_logger(), "\"%s\" service server not available after waiting for %.2fs",
         service_name_.c_str(), wait_for_service_timeout_.count() / 1000.0);
       throw std::runtime_error(
-              std::string(
-                "Service server %s not available",
-                service_name_.c_str()));
+              std::string("Service server ") + service_name_ +
+              std::string(" not available"));
     }
 
     RCLCPP_DEBUG(