diff --git a/source/backend/plugin/CarlaPluginNative.cpp b/source/backend/plugin/CarlaPluginNative.cpp
index 09bc1ac67..5cfe124ff 100644
--- a/source/backend/plugin/CarlaPluginNative.cpp
+++ b/source/backend/plugin/CarlaPluginNative.cpp
@@ -2849,6 +2849,7 @@ protected:
             break;
 
         case NATIVE_HOST_OPCODE_UI_RESIZE:
+        case NATIVE_HOST_OPCODE_PREVIEW_BUFFER_DATA:
             // unused here
             break;
         }
diff --git a/source/plugin/carla-vst.cpp b/source/plugin/carla-vst.cpp
index f565e6876..6cc260af2 100644
--- a/source/plugin/carla-vst.cpp
+++ b/source/plugin/carla-vst.cpp
@@ -784,6 +784,7 @@ protected:
         case NATIVE_HOST_OPCODE_QUEUE_INLINE_DISPLAY:
         case NATIVE_HOST_OPCODE_REQUEST_IDLE:
         case NATIVE_HOST_OPCODE_GET_FILE_PATH:
+        case NATIVE_HOST_OPCODE_PREVIEW_BUFFER_DATA:
             // nothing
             break;