diff --git a/settings.hpp b/settings.hpp
index 66cd3ae..a3505c3 100644
--- a/settings.hpp
+++ b/settings.hpp
@@ -26,7 +26,7 @@
      */
     Objects(sdbusplus::bus_t& bus, const std::vector<Interface>& filter);
     Objects(const Objects&) = default;
-    Objects& operator=(const Objects&) = default;
+    Objects& operator=(const Objects&) = delete;
     Objects(Objects&&) = delete;
     Objects& operator=(Objects&&) = delete;
     ~Objects() = default;