diff --git a/inc/thermostat.h b/inc/thermostat.h
--- a/inc/thermostat.h
+++ b/inc/thermostat.h
@@ -2,6 +2,10 @@
 #define THERMOSTAT_H
 
 #include "stm32f3xx_hal.h"
+#include "flash.h"
+#include "gpio.h"
+#include "stdlib.h"
+#include "display.h"
 
 
 float thermostat_process(void);