diff --git a/pkgs/development/tools/yarn2nix-moretea/yarn2nix/lib/generateNix.js b/pkgs/development/tools/yarn2nix-moretea/yarn2nix/lib/generateNix.js
index cebe7c715d1..144f1fdc987 100644
--- a/pkgs/development/tools/yarn2nix-moretea/yarn2nix/lib/generateNix.js
+++ b/pkgs/development/tools/yarn2nix-moretea/yarn2nix/lib/generateNix.js
@@ -33,7 +33,7 @@ const { execFileSync } = require('child_process')
 
 function prefetchgit(url, rev) {
   return JSON.parse(
-    execFileSync("nix-prefetch-git", ["--rev", rev, url], {
+    execFileSync("nix-prefetch-git", ["--rev", rev, url, "--fetch-submodules"], {
       stdio: [ "ignore", "pipe", "ignore" ],
       timeout: 60000,
     })