diff --git a/modules/programs/zsh.nix b/modules/programs/zsh.nix
index 0359796f0..24c00f674 100644
--- a/modules/programs/zsh.nix
+++ b/modules/programs/zsh.nix
@@ -215,6 +215,12 @@ in
         description = "Environment variables that will be set for zsh session.";
       };
 
+      initExtraBeforeCompInit = mkOption {
+        default = "";
+        type = types.lines;
+        description = "Extra commands that should be added to <filename>.zshrc</filename> before compinit.";
+      };
+
       initExtra = mkOption {
         default = "";
         type = types.lines;
@@ -341,6 +347,8 @@ in
 
         ${localVarsStr}
 
+        ${cfg.initExtraBeforeCompInit}
+
         ${concatStrings (map (plugin: ''
           path+="$HOME/${pluginsDir}/${plugin.name}"
           fpath+="$HOME/${pluginsDir}/${plugin.name}"