diff --git a/arch/arm/dts/stm32f7-u-boot.dtsi b/arch/arm/dts/stm32f7-u-boot.dtsi
index 7816b79bcf..29b157324e 100644
--- a/arch/arm/dts/stm32f7-u-boot.dtsi
+++ b/arch/arm/dts/stm32f7-u-boot.dtsi
@@ -143,4 +143,5 @@
 
 &usart1 {
 	u-boot,dm-pre-reloc;
+	clocks = <&rcc 0 STM32F7_APB2_CLOCK(USART1)>;
 };