diff --git a/var/spack/repos/builtin/packages/root/webgui.patch b/var/spack/repos/builtin/packages/root/webgui.patch
index 932bb1023f850a..54233d514f3808 100644
--- a/var/spack/repos/builtin/packages/root/webgui.patch
+++ b/var/spack/repos/builtin/packages/root/webgui.patch
@@ -22,4 +22,4 @@
 +WebGui.HttpLoopback:        yes
  # Use https protocol for the http server (default - no)
  WebGui.UseHttps:            no
- WebGui.ServerCert:          rootserver.pem
\ No newline at end of file
+ WebGui.ServerCert:          rootserver.pem