diff --git a/home/user/.config/bash/export b/home/user/.config/bash/export
index 0cefc06..c50a46a 100644
--- a/home/user/.config/bash/export
+++ b/home/user/.config/bash/export
@@ -34,3 +34,10 @@ fi
 if [ -d "$HOME/.go" ] ; then
     export GOPATH="$HOME/.go"
 fi
+
+for TMPDIR in "$TMPDIR" "$TMP" /tmp /var/tmp
+do
+    test -d "$TMPDIR" && break
+done
+
+export TMPDIR
diff --git a/install b/install
index ae626c0..69ac20e 100755
--- a/install
+++ b/install
@@ -3,13 +3,10 @@
 set -ueo pipefail
 shopt -s nullglob
 
-declare TARGET_PATH DOTFILES_ROOT SUB
+declare -r TARGET_PATH="$HOME"
+declare -r DOTFILES_ROOT="$PWD"
+declare -r SUB="$DOTFILES_ROOT/home/user"
 
-TARGET_PATH="$HOME"
-DOTFILES_ROOT="$(pwd)"
-SUB="$DOTFILES_ROOT/home/user"
-
-readonly TARGET_PATH DOTFILES_ROOT SUB
 export SUB