diff --git a/shell/xdgspec b/shell/xdgspec
index d1d7857..7536bad 100644
--- a/shell/xdgspec
+++ b/shell/xdgspec
@@ -6,6 +6,7 @@ export \
     XDG_CACHE_HOME="$HOME/.local/cache" \
     XDG_DATA_HOME="$HOME/.local/share" \
     XDG_CONFIG_HOME="$HOME/.config" \
+    _JAVA_OPTIONS=-Djava.util.prefs.userRoot="$XDG_CONFIG_HOME/java" \
     GTK2_RC_FILES="$XDG_CONFIG_HOME/gtk-2.0/gtkrc-2.0" \
     PASSWORD_STORE_DIR="$XDG_DATA_HOME/password-store" \
     VIMINIT="source $XDG_CONFIG_HOME/vim/vimrc" \