diff --git a/linux-tkg-config/prepare b/linux-tkg-config/prepare
index c3951f0..91addb3 100644
--- a/linux-tkg-config/prepare
+++ b/linux-tkg-config/prepare
@@ -23,7 +23,7 @@ fi
 
 if [[ -z "$_git_mirror" ]]; then
   _git_mirror="${_git_remote_names[2]}"
-  if $( ! timeout 5 git ls-remote ${_kernel_git_remotes[$_git_mirror]} ) || [[ "$( git ls-remote ${_kernel_git_remotes[$_git_mirror]} )" = *502* ]]; then
+  if $( ! timeout 5 git ls-remote ${_kernel_git_remotes[$_git_mirror]} >/dev/null ) || [[ "$( git ls-remote ${_kernel_git_remotes[$_git_mirror]} | head -n 1 )" = *502* ]]; then
     warning "kernel.org unreachable or too long to respond"
     _git_mirror="${_git_remote_names[0]}"
   fi