diff --git a/install.sh b/install.sh
index 3fcbf17..a3fa64c 100644
--- a/install.sh
+++ b/install.sh
@@ -1,9 +1,10 @@
 #!/bin/sh
 
 # clean + prepare local dirs
-rm -rf ~/.cache ~/.config/_cache
+rm -rf ~/.cache /tmp/${USER}-cache ~/.config/_cache
 rm -rf ~/.fdignore ~/.fzf.bash ~/.fzf.zsh ~/.gitconfig ~/.gitignore ~/.history ~/.tmux.conf ~/.vim* ~/.zcomp* ~/.zsh*
 mkdir -p /tmp/${USER}-cache/ ~/.config ~/.local/bin ~/.local/share ~/.local/config
+chmod 700 /tmp/${USER}-cache
 
 # prepare global variables
 echo "skip_global_compinit=1" > $HOME/.zshenv