diff --git a/shell/aliases b/shell/aliases
index 79cbe0c..a46c1cf 100644
--- a/shell/aliases
+++ b/shell/aliases
@@ -5,12 +5,12 @@ case "$OSTYPE" in
         alias top="top -o cpu -s 5"
         ;;
     *linux*)
-        alias ls="ls --color"
+        alias ls="ls --color=no"
         ;;
 esac
 
 alias ll="ls -l"
-alias tree="tree -C"
+alias tree="tree -n"
 if command -v colordiff 2>&1 >/dev/null; then
     alias diff="colordiff"
 fi