Index: uspace/srv/fs/mfs/mfs_ops.c
===================================================================
--- uspace/srv/fs/mfs/mfs_ops.c	(revision c84146d3591766f01374dd9dbf6a71f9db5f7055)
+++ uspace/srv/fs/mfs/mfs_ops.c	(revision e2f706e3ea21cc61ee413bac5947584169d648d7)
@@ -1165,5 +1165,5 @@
 		return ENOENT;
 	
-	block_total = (uint64_t)inst->sbi->nzones;
+	block_total = (uint64_t) MFS_BMAP_SIZE_BITS(inst->sbi, BMAP_ZONE);
 
 	return block_total;