diff --git a/src/internal/mana_lib.hpp b/src/internal/mana_lib.hpp
index 1ffe603..e2e7990 100644
--- a/src/internal/mana_lib.hpp
+++ b/src/internal/mana_lib.hpp
@@ -126,8 +126,9 @@ inline nlohmann::json make_array_descriptor(const std::string &name, const std::
     return make_array_descriptor(name, mana_float, size, bits);
 }
 
-struct ManaPlugin
+class ManaPlugin
 {
+  public:
     virtual ~ManaPlugin() = default;
 
     virtual void init() = 0;
@@ -138,6 +139,13 @@ struct ManaPlugin
                                size_t totalBytes) = 0;
 
     virtual void process_system_event(const uint32_t *data, size_t size) = 0;
+
+  protected:
+    ManaPlugin() = default;
+
+  private:
+    ManaPlugin(const ManaPlugin &) = delete;
+    ManaPlugin &operator=(const ManaPlugin &) = delete;
 };
 
 struct ManaCPlugin: public ManaPlugin