diff --git a/trunk/PKGBUILD b/trunk/PKGBUILD
index 2d97478..fd95593 100644
--- a/trunk/PKGBUILD
+++ b/trunk/PKGBUILD
@@ -52,7 +52,7 @@ prepare() {
   git submodule init
   git config --local submodule.gnulib.url "$srcdir/gnulib"
   git config --local submodule.gl-mod/bootstrap.url "$srcdir/gnulib-bootstrap"
-  git submodule update
+  git -c protocol.file.allow=always submodule update
 
   ./bootstrap
 }