diff --git a/boards/nxp/twr_ke18f/twr_ke18f.dts b/boards/nxp/twr_ke18f/twr_ke18f.dts
index 18bbbe72769..ca96c37c5ff 100644
--- a/boards/nxp/twr_ke18f/twr_ke18f.dts
+++ b/boards/nxp/twr_ke18f/twr_ke18f.dts
@@ -283,6 +283,7 @@
 &adc0 {
 	status = "okay";
 	sample-time = <12>;
+	vref-mv = <3300>;
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };