diff --git a/include/dpp/cluster.h b/include/dpp/cluster.h
index b27d068e9d..ec4044964b 100644
--- a/include/dpp/cluster.h
+++ b/include/dpp/cluster.h
@@ -325,7 +325,7 @@ class DPP_EXPORT cluster {
 	 *
 	 * @return cluster& Reference to self for chaining.
 	 */
-	cluster& set_default_gateway(std::string& default_gateway);
+	cluster& set_default_gateway(const std::string& default_gateway);
 
 	/**
 	 * @brief Log a message to whatever log the user is using.
diff --git a/src/dpp/cluster.cpp b/src/dpp/cluster.cpp
index 96b9d56421..db8ce14c31 100644
--- a/src/dpp/cluster.cpp
+++ b/src/dpp/cluster.cpp
@@ -411,7 +411,7 @@ cluster& cluster::clear_audit_reason() {
 	return *this;
 }
 
-cluster& cluster::set_default_gateway(std::string &default_gateway_new) {
+cluster& cluster::set_default_gateway(const std::string &default_gateway_new) {
 	default_gateway = default_gateway_new;
 	return *this;
 }