1diff --git a/lib/git.zsh b/lib/git.zsh
2index 3a03dbd4d48339ab3ea0026a1361341a0bb37b09..63482df6e07c03ca19d6c6882e6bef73927cd3a6 100644
3--- a/lib/git.zsh
4+++ b/lib/git.zsh
5@@ -162,13 +162,13 @@ if zstyle -t ':omz:alpha:lib:git' async-prompt \
6 # or any of the other prompt variables
7 function _defer_async_git_register() {
8 # Check if git_prompt_info is used in a prompt variable
9- case "${PS1}:${PS2}:${PS3}:${PS4}:${RPROMPT}:${RPS1}:${RPS2}:${RPS3}:${RPS4}" in
10+ case "${PS1}:${PS2}:${PS3}:${PS4}:${RPROMPT-}:${RPS1-}:${RPS2-}:${RPS3-}:${RPS4-}" in
11 *(\$\(git_prompt_info\)|\`git_prompt_info\`)*)
12 _omz_register_handler _omz_git_prompt_info
13 ;;
14 esac
1516- case "${PS1}:${PS2}:${PS3}:${PS4}:${RPROMPT}:${RPS1}:${RPS2}:${RPS3}:${RPS4}" in
17+ case "${PS1}:${PS2}:${PS3}:${PS4}:${RPROMPT-}:${RPS1-}:${RPS2-}:${RPS3-}:${RPS4-}" in
18 *(\$\(git_prompt_status\)|\`git_prompt_status\`)*)
19 _omz_register_handler _omz_git_prompt_status
20 ;;