diff --git a/protocol/esta/sacn/universe.h b/protocol/esta/sacn/universe.h
index 8619549..92f0fca 100644
--- a/protocol/esta/sacn/universe.h
+++ b/protocol/esta/sacn/universe.h
@@ -71,9 +71,9 @@ public:
   virtual std::shared_ptr<void> onSourceListChange(std::function<void()>);
 
   // DMX::Universe overrides
-  void setValue (const uint16_t address, const uint8_t value) override;
-  void setValue (const uint16_t start, const uint16_t footprint,
-                 const uint8_t* data) override;
+  virtual void setValue (const uint16_t address, const uint8_t value) override;
+  virtual void setValue (const uint16_t start, const uint16_t footprint,
+                         const uint8_t* data) override;
   virtual void    setStatus(uint8_t) override;
   virtual uint8_t status() override;