diff --git a/Devices/elecrow-crowpanel-basic-50/elecrow,crowpanel-basic-50.dts b/Devices/elecrow-crowpanel-basic-50/elecrow,crowpanel-basic-50.dts
index 502f51728..8477a403e 100644
--- a/Devices/elecrow-crowpanel-basic-50/elecrow,crowpanel-basic-50.dts
+++ b/Devices/elecrow-crowpanel-basic-50/elecrow,crowpanel-basic-50.dts
@@ -66,6 +66,7 @@
 	display_backlight {
 		compatible = "espressif,esp32-ledc-backlight";
 		pin-backlight = <&gpio0 2 GPIO_FLAG_NONE>;
+		frequency-hz = <512>;
 	};
 
 	display0 {