diff --git a/sys/fs/fat/fat_opts.h b/sys/fs/fat/fat_opts.h
index f827b30..d9983b6 100644
--- a/sys/fs/fat/fat_opts.h
+++ b/sys/fs/fat/fat_opts.h
@@ -11,12 +11,12 @@
 
 // Is the processor little endian (1) or big endian (0)
 #ifndef FATFS_IS_LITTLE_ENDIAN
-    #define FATFS_IS_LITTLE_ENDIAN          1
+#define FATFS_IS_LITTLE_ENDIAN          1
 #endif
 
 // Max filename Length
 #ifndef FATFS_MAX_LONG_FILENAME
-    #define FATFS_MAX_LONG_FILENAME         260
+#define FATFS_MAX_LONG_FILENAME         260
 #endif
 
 // Max open files (reduce to lower memory requirements)
@@ -26,13 +26,13 @@
 
 // Number of sectors per FAT_BUFFER (min 1)
 #ifndef FAT_BUFFER_SECTORS
-    #define FAT_BUFFER_SECTORS              1
+#define FAT_BUFFER_SECTORS              1
 #endif
 
 // Max FAT sectors to buffer (min 1)
 // (mem used is FAT_BUFFERS * FAT_BUFFER_SECTORS * FAT_SECTOR_SIZE)
 #ifndef FAT_BUFFERS
-    #define FAT_BUFFERS                     1
+#define FAT_BUFFERS                     1
 #endif
 
 // Size of cluster chain cache (can be undefined)
@@ -42,28 +42,28 @@
 
 // Include support for writing files (1 / 0)?
 #ifndef FATFS_INC_WRITE_SUPPORT
-    #define FATFS_INC_WRITE_SUPPORT         1
+#define FATFS_INC_WRITE_SUPPORT         1
 #endif
 
 // Support long filenames (1 / 0)?
 // (if not (0) only 8.3 format is supported)
 #ifndef FATFS_INC_LFN_SUPPORT
-    #define FATFS_INC_LFN_SUPPORT           1
+#define FATFS_INC_LFN_SUPPORT           1
 #endif
 
 // Support directory listing (1 / 0)?
 #ifndef FATFS_DIR_LIST_SUPPORT
-    #define FATFS_DIR_LIST_SUPPORT          1
+#define FATFS_DIR_LIST_SUPPORT          1
 #endif
 
 // Support time/date (1 / 0)?
 #ifndef FATFS_INC_TIME_DATE_SUPPORT
-    #define FATFS_INC_TIME_DATE_SUPPORT     0
+#define FATFS_INC_TIME_DATE_SUPPORT     0
 #endif
 
 // Include support for formatting disks (1 / 0)?
 #ifndef FATFS_INC_FORMAT_SUPPORT
-    #define FATFS_INC_FORMAT_SUPPORT        1
+#define FATFS_INC_FORMAT_SUPPORT        1
 #endif
 
 // Sector size used
@@ -71,15 +71,15 @@
 
 // Printf output (directory listing / debug)
 #ifndef FAT_PRINTF
-    // Don't include stdio, but there is a printf function available
-    #ifdef FAT_PRINTF_NOINC_STDIO
+// Don't include stdio, but there is a printf function available
+#ifdef FAT_PRINTF_NOINC_STDIO
         extern int printf(const char* ctrl1, ... );
         #define FAT_PRINTF(a)               printf a
     // Include stdio to use printf
     #else
-        #include <stdio.h>
-        #define FAT_PRINTF(a)               printf a
-    #endif
+// #include <stdio.h>
+#define FAT_PRINTF(a)               kprintf a
+#endif
 #endif
 
 // Time/Date support requires time.h