diff --git a/core/renderer/backend/RenderTarget.h b/core/renderer/backend/RenderTarget.h
index 634b87e860..c86af6a768 100644
--- a/core/renderer/backend/RenderTarget.h
+++ b/core/renderer/backend/RenderTarget.h
@@ -38,7 +38,6 @@ public:
     TargetBufferFlags getTargetFlags() const { return _flags; }
     void setTargetFlags(TargetBufferFlags flags) { 
         _flags = flags; 
-        _dirty = true;
     }
 
     void setColorAttachment(ColorAttachment attachment)