diff --git a/modules/programs/zsh/default.nix b/modules/programs/zsh/default.nix
index 4eb40595..d26da0ef 100644
--- a/modules/programs/zsh/default.nix
+++ b/modules/programs/zsh/default.nix
@@ -54,7 +54,7 @@ in
 
     programs.zsh.promptInit = mkOption {
       type = types.lines;
-      default = "autoload -U promptinit && promptinit && prompt walters";
+      default = "autoload -U promptinit && promptinit && prompt walters && setopt prompt_sp";
       description = lib.mdDoc "Shell script code used to initialise the zsh prompt.";
     };