diff --git a/common/rc b/common/rc
index 875b63dc..f09f5ef3 100644
--- a/common/rc
+++ b/common/rc
@@ -1013,7 +1013,7 @@ _scratch_mkfs_sized()
     xfs)
 	def_blksz=`echo $MKFS_OPTIONS|sed -rn 's/.*-b ?size= ?+([0-9]+).*/\1/p'`
 	;;
-    ext2|ext3|ext4|ext4dev|udf|btrfs|reiser4|ocfs2)
+    ext2|ext3|ext4|ext4dev|udf|btrfs|reiser4|ocfs2|reiserfs)
 	def_blksz=`echo $MKFS_OPTIONS| sed -rn 's/.*-b ?+([0-9]+).*/\1/p'`
 	;;
     jfs)
@@ -1067,6 +1067,9 @@ _scratch_mkfs_sized()
     jfs)
 	${MKFS_PROG}.$FSTYP $MKFS_OPTIONS $SCRATCH_DEV $blocks
 	;;
+    reiserfs)
+	${MKFS_PROG}.$FSTYP $MKFS_OPTIONS -b $blocksize $SCRATCH_DEV $blocks
+	;;
     reiser4)
 	# mkfs.resier4 requires size in KB as input for creating filesystem
 	$MKFS_REISER4_PROG $MKFS_OPTIONS -y -b $blocksize $SCRATCH_DEV \