diff --git a/arch/arm/dts/stm32f7-pinctrl.dtsi b/arch/arm/dts/stm32f7-pinctrl.dtsi
index 000278ec2c58..607fe42f4f46 100644
--- a/arch/arm/dts/stm32f7-pinctrl.dtsi
+++ b/arch/arm/dts/stm32f7-pinctrl.dtsi
@@ -172,6 +172,16 @@
 				};
 			};
 
+			i2c3_pins_a: i2c3-0 {
+				pins {
+					pinmux = <STM32_PINMUX('H', 8, AF4)>, /* I2C3_SDA */
+						 <STM32_PINMUX('H', 7, AF4)>; /* I2C3_SCL */
+					bias-disable;
+					drive-open-drain;
+					slew-rate = <0>;
+				};
+			};
+
 			usbotg_hs_pins_a: usbotg-hs-0 {
 				pins {
 					pinmux = <STM32_PINMUX('H', 4, AF10)>, /* OTG_HS_ULPI_NXT */