diff --git a/ssd1306.c b/ssd1306.c
--- a/ssd1306.c
+++ b/ssd1306.c
@@ -1,4 +1,4 @@
-#include "stm32f0xx_conf.h"
+#include "stm32f0xx_hal_conf.h"
 #include "ssd1306.h"
 
 // Write command to OLED