diff --git a/pkgs/build-support/build-fhs-userenv/chrootenv/chrootenv.c b/pkgs/build-support/build-fhs-userenv/chrootenv/chrootenv.c
index c03a1710f45..7e49e9e78d7 100644
--- a/pkgs/build-support/build-fhs-userenv/chrootenv/chrootenv.c
+++ b/pkgs/build-support/build-fhs-userenv/chrootenv/chrootenv.c
@@ -118,6 +118,7 @@ int main(gint argc, gchar **argv) {
     bind("/", prefix);
 
     fail_if(chroot(prefix));
+    fail_if(chdir("/"));
     fail_if(execvp(*argv, argv));
   }