Index: uspace/app/mkminix/mkminix.c
===================================================================
--- uspace/app/mkminix/mkminix.c	(revision 410a06581bf1b0dc1b83bb99d1d5e77fb16f7977)
+++ uspace/app/mkminix/mkminix.c	(revision 8e419947b83f426f8ed3d5ba375929fe9b20a20e)
@@ -374,9 +374,6 @@
 {
 	struct mfs_superblock *sb;
-	uint8_t *superblock_buf;
-
-	superblock_buf = malloc(1024);
-
-	sb = (struct mfs_superblock *) superblock_buf;
+
+	sb = (struct mfs_superblock *) malloc(MFS_SUPERBLOCK_SIZE);;
 
 	sb->s_ninodes = (uint16_t) sbi->n_inodes;
@@ -392,5 +389,5 @@
 
 	block_write_direct(sbi->handle, MFS_SUPERBLOCK, 1, sb);
-	free(superblock_buf);
+	free(sb);
 }