diff --git a/sys/compat/linuxkpi/common/src/linux_pci.c b/sys/compat/linuxkpi/common/src/linux_pci.c
index d28eac4d574..32835d3d133 100644
--- a/sys/compat/linuxkpi/common/src/linux_pci.c
+++ b/sys/compat/linuxkpi/common/src/linux_pci.c
@@ -391,7 +391,7 @@ unsigned long
 pci_resource_start(struct pci_dev *pdev, int bar)
 {
 	struct resource_list_entry *rle;
-	unsigned long newstart;
+	rman_res_t newstart;
 	device_t dev;
 
 	if ((rle = linux_pci_get_bar(pdev, bar)) == NULL)