-alias dquilt="quilt --quiltrc=${HOME}/.quiltrc-dpkg"
-complete -F _quilt_completion -o filenames dquilt
+bash_completions_dir=/usr/share/bash-completion/completions/
+
+alias dquilt="quilt --quiltrc=${XDG_CONFIG_HOME}/quilt/quiltrc-dpkg"
+quilt_comps="${bash_completions_dir}/quilt"
+if [ -f "${quilt_comps}" ]; then
+ . "${quilt_comps}"
+ complete -F _quilt_completion -o filenames dquilt
+fi
+
+pass_otp_comps="${bash_completions_dir}/pass-otp"
+if [ -f "${pass_otp_comps}" ]; then
+ . "${pass_otp_comps}"
+fi