diff --git a/src/device/pci_device.c b/src/device/pci_device.c
index a61fbd6..ed95dff 100644
--- a/src/device/pci_device.c
+++ b/src/device/pci_device.c
@@ -1216,6 +1216,9 @@
 	u16 pcie_pos, pcie_flags_reg;
 	int pcie_type;
 
+	if (!bridge)
+		return false;
+
 	pcie_pos = pci_find_capability(bridge, PCI_CAP_ID_PCIE);
 	if (!pcie_pos)
 		return false;