diff --git a/drivers/xen/dbgp.c b/drivers/xen/dbgp.c
index 42569c77ccc8886d38b924a457489819d0dd53c4..f3ccc80a455f54c0abd15c1018f2fc79c7a0332a 100644
--- a/drivers/xen/dbgp.c
+++ b/drivers/xen/dbgp.c
@@ -8,7 +8,9 @@
 
 static int xen_dbgp_op(struct usb_hcd *hcd, int op)
 {
+#ifdef CONFIG_PCI
 	const struct device *ctrlr = hcd_to_bus(hcd)->controller;
+#endif
 	struct physdev_dbgp_op dbgp;
 
 	if (!xen_initial_domain())