diff --git a/src/devices/stm32/bus/i2c.cpp b/src/devices/stm32/bus/i2c.cpp
index 6478f8a..29ba02d 100644
--- a/src/devices/stm32/bus/i2c.cpp
+++ b/src/devices/stm32/bus/i2c.cpp
@@ -117,7 +117,8 @@ namespace sta
 	}
 
 	STM32I2CDevice::STM32I2CDevice(STM32I2C * intf, int address, bool master, bool blocking)
-		: I2CDevice(intf, address, master, blocking)
+		/* The address is bit-shifted by one to work properly for the STM32 HAL. */
+		: I2CDevice(intf, address << 1, master, blocking)
 	{
 
 	}