diff --git a/source/backend/engine/CarlaEngineGraph.cpp b/source/backend/engine/CarlaEngineGraph.cpp
index 3eee5918e..9a6399f82 100644
--- a/source/backend/engine/CarlaEngineGraph.cpp
+++ b/source/backend/engine/CarlaEngineGraph.cpp
@@ -1193,7 +1193,7 @@ public:
         return fPlugin->getName();
     }
 
-    void processBlock(AudioSampleBuffer& audio, MidiBuffer& midi)
+    void processBlock(AudioSampleBuffer& audio, MidiBuffer& midi) override
     {
         if (fPlugin == nullptr || ! fPlugin->isEnabled())
         {
diff --git a/source/backend/plugin/CarlaPluginBridge.cpp b/source/backend/plugin/CarlaPluginBridge.cpp
index c932df612..853803c2a 100644
--- a/source/backend/plugin/CarlaPluginBridge.cpp
+++ b/source/backend/plugin/CarlaPluginBridge.cpp
@@ -802,7 +802,7 @@ public:
     // -------------------------------------------------------------------
     // Information (base)
 
-    BinaryType getBinaryType() const noexcept
+    BinaryType getBinaryType() const noexcept override
     {
         return fBinaryType;
     }
diff --git a/source/backend/plugin/CarlaPluginDSSI.cpp b/source/backend/plugin/CarlaPluginDSSI.cpp
index 3896de032..29fb1f1fc 100644
--- a/source/backend/plugin/CarlaPluginDSSI.cpp
+++ b/source/backend/plugin/CarlaPluginDSSI.cpp
@@ -522,7 +522,7 @@ public:
     // -------------------------------------------------------------------
     // Set data (internal stuff)
 
-    void setId(const uint newId) noexcept
+    void setId(const uint newId) noexcept override
     {
         CarlaPlugin::setId(newId);