diff --git a/bootstrap b/bootstrap
index 988cdd3..971a842 100755
--- a/bootstrap
+++ b/bootstrap
@@ -30,6 +30,7 @@ ${HOME}/.local/etc/git
 ${HOME}/.jupyter/custom
 ${HOME}/.jupyter/nbconfig
 ${HOME}/.ssh
+${XDG_CACHE_HOME}/zsh
 ${XDG_CONFIG_HOME}/alacritty
 ${XDG_CONFIG_HOME}/git
 ${XDG_CONFIG_HOME}/mintty
diff --git a/files/zshrc b/files/zshrc
index ce2d0a3..eb77912 100644
--- a/files/zshrc
+++ b/files/zshrc
@@ -9,3 +9,8 @@ unset f
 
 stty stop undef # Prevent ctrl-s from freezing the terminal.
 
+# Save a lot of history in the cache directory.
+HISTFILE="${XDG_CACHE_HOME:-$HOME/.cache}/zsh/history"
+HISTSIZE=1000000
+SAVEHIST=1000000
+