diff --git a/bin/bin/toggle-color-mode b/bin/bin/toggle-color-mode
index 827ded1..1856118 100755
--- a/bin/bin/toggle-color-mode
+++ b/bin/bin/toggle-color-mode
@@ -1,8 +1,8 @@
 #!/bin/bash
 
-color_file=$HOME/.config/$USERNAME/color.yml
+color_file=$HOME/.config/$USER/color.yml
 if ! test -f $color_file; then
-  mkdir -p $HOME/.config/$USERNAME
+  mkdir -p $HOME/.config/$USER
   echo light > $color_file
 fi
 old_color=$(cat $color_file)
diff --git a/install.sh b/install.sh
index 53f26c4..956f6d9 100755
--- a/install.sh
+++ b/install.sh
@@ -42,7 +42,7 @@ install_alacritty() {
     sudo mv /tmp/Alacritty.svg /usr/share/pixmaps/Alacritty.svg
     sudo desktop-file-install /tmp/Alacritty.desktop
     sudo update-desktop-database
-    sudo ln -s /home/$USERNAME/.cargo/bin/alacritty /usr/local/bin/alacritty
+    sudo ln -s /home/$USER/.cargo/bin/alacritty /usr/local/bin/alacritty
   fi
 }
 
diff --git a/nvim/.config/nvim/lua/config.lua b/nvim/.config/nvim/lua/config.lua
index 1773456..b46dde8 100644
--- a/nvim/.config/nvim/lua/config.lua
+++ b/nvim/.config/nvim/lua/config.lua
@@ -36,7 +36,7 @@ vim.api.nvim_create_autocmd({"WinLeave"}, {
 --- background matching terminal
 function ChangeBackground()
   local home = os.getenv("HOME")
-  local user = os.getenv("USERNAME")
+  local user = os.getenv("USER")
   local file = io.open(home.."/.config/"..user.."/color.yml", "rb")
   local background = file:read()
   file:close()