diff --git a/include/hw/pci/pci_regs.h b/include/hw/pci/pci_regs.h
index ba8cbe9278..7a83142578 100644
--- a/include/hw/pci/pci_regs.h
+++ b/include/hw/pci/pci_regs.h
@@ -1 +1,3 @@
 #include "standard-headers/linux/pci_regs.h"
+
+#define  PCI_PM_CAP_VER_1_1     0x0002  /* PCI PM spec ver. 1.1 */