diff --git a/home/.zsh/custom/walkah.zsh-theme b/home/.zsh/custom/walkah.zsh-theme
index 0d7408a..44a5b46 100644
--- a/home/.zsh/custom/walkah.zsh-theme
+++ b/home/.zsh/custom/walkah.zsh-theme
@@ -9,8 +9,9 @@ function asdf_prompt() {
 
 PROMPT='%{$fg[$HCOLOR]%}%m%{$reset_color%}:%c $(git_prompt_info)%{$fg[red]%}%(!.#.»)%{$reset_color%} '
 PROMPT2='%{$fg[red]%}\ %{$reset_color%}'
-RPS1='%{$fg[cyan]%}(%{$fg[red]%}$(asdf_prompt ruby) %{$fg[green]%}$(asdf_prompt nodejs) %{$fg[blue]%}$(asdf_prompt python)%{$fg[cyan]%}) %{$reset_color%}${return_code}'
-
+if (( $+commands[asdf] )); then
+	RPS1='%{$fg[cyan]%}(%{$fg[red]%}$(asdf_prompt ruby) %{$fg[green]%}$(asdf_prompt nodejs) %{$fg[blue]%}$(asdf_prompt python)%{$fg[cyan]%}) %{$reset_color%}${return_code}'
+fi
 ZSH_THEME_GIT_PROMPT_PREFIX="%{$fg[green]%}±%{$fg[yellow]%}"
 ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%} "
 ZSH_THEME_GIT_PROMPT_CLEAN=""