diff --git a/STM32F1/libraries/OLED_I2C/hardware/arm/HW_STM32.h b/STM32F1/libraries/OLED_I2C/hardware/arm/HW_STM32.h
index 7060b44..25967c7 100644
--- a/STM32F1/libraries/OLED_I2C/hardware/arm/HW_STM32.h
+++ b/STM32F1/libraries/OLED_I2C/hardware/arm/HW_STM32.h
@@ -1,4 +1,4 @@
-#include "HardWire.h"
+#include "Wire.h"
 #define WIRE_WRITE HWIRE.write
 
  HardWire HWIRE(2,I2C_FAST_MODE); // stupid compiler