diff --git a/device.mk b/device.mk
index cc8a1826..0a06ebe2 100644
--- a/device.mk
+++ b/device.mk
@@ -294,6 +294,9 @@ PRODUCT_VENDOR_PROPERTIES += \
 	graphics.gpu.profiler.support=true \
 	debug.renderengine.backend=skiaglthreaded \
 
+# b/295257834 Add HDR shaders to SurfaceFlinger's pre-warming cache
+PRODUCT_VENDOR_PROPERTIES += ro.surface_flinger.prime_shader_cache.ultrahdr=1
+
 # GRAPHICS - GPU (end)
 # ####################