1 files changed, 4 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_ViewerOperation.h b/source/blender/compositor/operations/COM_ViewerOperation.h
index a3df19d5e90..2d3795da035 100644
--- a/source/blender/compositor/operations/COM_ViewerOperation.h
+++ b/source/blender/compositor/operations/COM_ViewerOperation.h
@@ -23,6 +23,8 @@
 #include "COM_NodeOperation.h"
 #include "DNA_image_types.h"
 
+namespace blender::compositor {
+
 class ViewerOperation : public NodeOperation {
  private:
   float *m_outputBuffer;
@@ -131,3 +133,5 @@ class ViewerOperation : public NodeOperation {
   void updateImage(rcti *rect);
   void initImage();
 };
+
+}  // namespace blender::compositor