diff --git a/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
index 35b8d2060cd9..dfa08be33a4f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
@@ -126,6 +126,7 @@
 	assigned-clock-parents = <&clk IMX8MN_AUDIO_PLL1_OUT>;
 	assigned-clock-rates = <24576000>;
 	#sound-dai-cells = <0>;
+	fsl,sai-mclk-direction-output;
 	status = "okay";
 };