diff --git a/sub/bash/aliases b/sub/bash/aliases
index 4e92019..1a93b6b 100644
--- a/sub/bash/aliases
+++ b/sub/bash/aliases
@@ -17,8 +17,6 @@ alias la='ls -AF'
 alias lla='ls -lhFA'
 alias ll.='ls -lhFA --ignore="*"'
 
-alias lt='(du -sh * .* 2>/dev/null | sort -h | tac; du -sh .)'
-
 
 alias _='sudo'
 alias root='sudo su - root'
diff --git a/sub/bash/functions b/sub/bash/functions
index 64952e6..8b591cc 100644
--- a/sub/bash/functions
+++ b/sub/bash/functions
@@ -8,6 +8,12 @@ _sod () {
     fi
 }
 
+lt () {
+    local DIR
+    test -z "$1" && DIR="." || DIR="$1"
+    du -sh "$DIR"/* "$DIR"/.* 2>/dev/null | sort -h | tac; du -sh "$DIR"/.
+}
+
 destroy() {
     test -n "$1" || return 1
     test -e "$1" || return 1