diff --git a/board/purple/purple.c b/board/purple/purple.c
index 4401aa2..89cb906 100644
--- a/board/purple/purple.c
+++ b/board/purple/purple.c
@@ -35,8 +35,8 @@
 
 #define cache_unroll(base,op)		\
 	__asm__ __volatile__("		\
-		.set noreorder;	        \
-		.set mips3;	        \
+		.set noreorder;		\
+		.set mips3;		\
 		cache %1, (%0);		\
 		.set mips0;		\
 		.set reorder"		\
@@ -47,10 +47,10 @@
 typedef void (*FUNCPTR)(ulong *source, ulong *destination, ulong nlongs);
 
 extern void	asc_serial_init		(void);
-extern void	asc_serial_putc	(char);
-extern void	asc_serial_puts	(const char *);
-extern int	asc_serial_getc	(void);
-extern int	asc_serial_tstc	(void);
+extern void	asc_serial_putc		(char);
+extern void	asc_serial_puts		(const char *);
+extern int	asc_serial_getc		(void);
+extern int	asc_serial_tstc		(void);
 extern void	asc_serial_setbrg	(void);
 
 void _machine_restart(void)