diff --git a/firmware/shared/spi.c b/firmware/shared/spi.c
index 2d653d1..28c2db7 100644
--- a/firmware/shared/spi.c
+++ b/firmware/shared/spi.c
@@ -73,6 +73,9 @@ void spi_init(){
 	SPCR = spcr;
 }
 
+
+
+
 void spi_mst_start_packet(){
 	SPI_SSOUT &= ~(_BV(SPI_SS_PIN));
 }
@@ -138,11 +141,3 @@ void spi_sla_handle_packet(){
 
 
 
-
-#ifndef SPI_MASTER
-ISR(SPI_vector){
-
-}
-
-
-#endif //SPI_MASTER
diff --git a/firmware/shared/spi.h b/firmware/shared/spi.h
index 9ad1eba..49a065b 100644
--- a/firmware/shared/spi.h
+++ b/firmware/shared/spi.h
@@ -9,6 +9,8 @@
 #define SPI_SS_PORT D
 #define SPI_SS_PIN 7
 
+
+
 // copied/adapted from usbdrv.h
 #define SPI_CONCAT(a, b)            a ## b