diff --git a/hw/xen/meson.build b/hw/xen/meson.build
index 08dc1f6857..ae0ace3046 100644
--- a/hw/xen/meson.build
+++ b/hw/xen/meson.build
@@ -18,7 +18,7 @@ if have_xen_pci_passthrough
     'xen_pt_msi.c',
   ))
 else
-  xen_specific_ss.add('xen_pt_stub.c')
+  xen_specific_ss.add(files('xen_pt_stub.c'))
 endif
 
 specific_ss.add_all(when: ['CONFIG_XEN', xen], if_true: xen_specific_ss)