diff --git a/heater.c b/heater.c
index 3eec957..45af37e 100644
--- a/heater.c
+++ b/heater.c
@@ -273,7 +273,7 @@ void heater_init() {
 	// set all heater pins to output
 	do {
 		#undef	DEFINE_HEATER
-		#define	DEFINE_HEATER(name, pin, pwm) WRITE(pin, 0); SET_OUTPUT(pin);
+		#define	DEFINE_HEATER(name, pin, pwm) SET_OUTPUT(pin); WRITE(pin, 0);
 			#include "config_wrapper.h"
 		#undef DEFINE_HEATER
 	} while (0);
diff --git a/sd.c b/sd.c
index 3f8c457..a353d67 100644
--- a/sd.c
+++ b/sd.c
@@ -19,8 +19,8 @@ static FRESULT result;
 /** Initialize SPI for SD card reading.
 */
 void sd_init(void) {
-  WRITE(SD_CARD_SELECT_PIN, 1);
   SET_OUTPUT(SD_CARD_SELECT_PIN);
+  WRITE(SD_CARD_SELECT_PIN, 1);
 }
 
 /** Mount the SD card.