diff --git a/sh/alias/tree.sh b/sh/alias/tree.sh
index c96738c..9d807c0 100644
--- a/sh/alias/tree.sh
+++ b/sh/alias/tree.sh
@@ -1,9 +1,11 @@
-t() {
+t() { sh_a__tree "${@}"; }
+sh_a__tree() {
 	tree \
 		"${@}"
 }
 
-ta() {
+ta() { sh_a__tree_all "${@}"; }
+sh_a__tree_all() {
 	tree \
 		-a \
 		"${@}"