diff --git a/drmdisplaycompositor.h b/drmdisplaycompositor.h
index e4c3b53..9487cac 100644
--- a/drmdisplaycompositor.h
+++ b/drmdisplaycompositor.h
@@ -149,6 +149,7 @@
   int ApplyDpms(DrmDisplayComposition *display_comp);
   int DisablePlanes(DrmDisplayComposition *display_comp);
 
+  void ClearDisplay();
   void ApplyFrame(std::unique_ptr<DrmDisplayComposition> composition,
                   int status);