diff --git a/large-files b/large-files
index e7bb1f2..49e0e25 100755
--- a/large-files
+++ b/large-files
@@ -1,8 +1,8 @@
 #!/bin/sh
 # Find large files on this host
 
-LARGE='+100M'
+LARGE=${1:-100M}
 WHERE=`mount -t ext2,ext3,ext4,btrfs,ntfs,reiserfs,xfs,zfs | awk '{ print $3 }'`
 IGNORE='^(/var/lib/rpm/Packages|/home/.*/.btsync/.*\.db)$'
 
-sudo find $WHERE -xdev -size $LARGE | grep --line-buffered -Ev "$IGNORE"
+sudo find $WHERE -xdev -size +$LARGE | grep --line-buffered -Ev "$IGNORE"