diff --git a/scene/main/viewport.h b/scene/main/viewport.h
index 9238f7637c4..b7d4a56b9eb 100644
--- a/scene/main/viewport.h
+++ b/scene/main/viewport.h
@@ -279,7 +279,7 @@ private:
 
 	MSAA msaa;
 	ScreenSpaceAA screen_space_aa;
-	bool use_debanding;
+	bool use_debanding = false;
 	Ref<ViewportTexture> default_texture;
 	Set<ViewportTexture *> viewport_textures;