diff --git a/zshrc b/zshrc
index 47bbf51..2f3e1b2 100644
--- a/zshrc
+++ b/zshrc
@@ -101,6 +101,7 @@ precmd_define_prompt() {
     PS1='%B%K{white}%F{black}%(3~|…/%1~|%~)%k%f %F{green}${vcs_info_msg_0_}%f %%%b '
   fi
 }
+typeset -ga precmd_functions
 precmd_functions+=precmd_define_prompt
 
 # include reading files from directory