diff --git a/fs/fat32/fat32.h b/fs/fat32/fat32.h
index 07d97c2..8cc990a 100644
--- a/fs/fat32/fat32.h
+++ b/fs/fat32/fat32.h
@@ -1,15 +1,15 @@
-#ifndef EMBPART_FAT32_H
-#define EMBPART_FAT32_H
+#ifndef CORE_EMBPART_FS_FAT32_FAT32
+#define CORE_EMBPART_FS_FAT32_FAT32
 
 #include <stdint.h>
 
-#ifdef __linux
 #include <stdio.h>
 #include "../../MassStorage.h"
 #include "../fs_driver.h"
 
+#ifdef __linux
 #define MSG(...) printf(__VA_ARGS__)
-#endif
+#endif /* CORE_EMBPART_FS_FAT32_FAT32 */
 
 #define FAT32_CHS_PART_ID (0x0B)
 #define FAT32_LBA_PART_ID (0x0C)
diff --git a/mount/mount.c b/mount/mount.c
index 054cccb..98a6314 100644
--- a/mount/mount.c
+++ b/mount/mount.c
@@ -186,7 +186,7 @@ void mnt_list(const char *dir) {
     // if
     if ((dir[0] == '\0') || ((dir[0] == MNT_DIRSEP) && (dir[1] == '\0'))) {
         for (uint8_t i = 0; i < mtab.mounted_vols; i++) {
-            MSG("/%s      VOLUME\n", mtab.vols[i].mnt_name);
+            MSG("/%s     %.3f MB VOLUME\n", mtab.vols[i].mnt_name, mtab.vols[i].part_size * 1E-06);
         }
         return;
     }