diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index ed545f669459f633e949cca9b4ff36ba42185040..743ed8c48b9c674105b08a321d7089beb77a1e57 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -354,8 +354,11 @@ static void pci_bridge_check_ranges(struct pci_bus *bus)
 	}
 	if (pmem) {
 		b_res[2].flags |= IORESOURCE_MEM | IORESOURCE_PREFETCH;
-		if ((pmem & PCI_PREF_RANGE_TYPE_MASK) == PCI_PREF_RANGE_TYPE_64)
+		if ((pmem & PCI_PREF_RANGE_TYPE_MASK) ==
+		    PCI_PREF_RANGE_TYPE_64) {
 			b_res[2].flags |= IORESOURCE_MEM_64;
+			b_res[2].flags |= PCI_PREF_RANGE_TYPE_64;
+		}
 	}
 
 	/* double check if bridge does support 64 bit pref */