diff --git a/hw/pci/pci_bridge.c b/hw/pci/pci_bridge.c
index d1f902ee86..da34c8ebcd 100644
--- a/hw/pci/pci_bridge.c
+++ b/hw/pci/pci_bridge.c
@@ -448,11 +448,11 @@ int pci_bridge_qemu_reserve_cap_init(PCIDevice *dev, int cap_offset,
     PCIBridgeQemuCap cap = {
             .len = cap_len,
             .type = REDHAT_PCI_CAP_RESOURCE_RESERVE,
-            .bus_res = res_reserve.bus,
-            .io = res_reserve.io,
-            .mem = res_reserve.mem_non_pref,
-            .mem_pref_32 = res_reserve.mem_pref_32,
-            .mem_pref_64 = res_reserve.mem_pref_64
+            .bus_res = cpu_to_le32(res_reserve.bus),
+            .io = cpu_to_le64(res_reserve.io),
+            .mem = cpu_to_le32(res_reserve.mem_non_pref),
+            .mem_pref_32 = cpu_to_le32(res_reserve.mem_pref_32),
+            .mem_pref_64 = cpu_to_le64(res_reserve.mem_pref_64)
     };
 
     int offset = pci_add_capability(dev, PCI_CAP_ID_VNDR,