diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 747a2c8..516225a 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2003,6 +2003,8 @@
 		force	Use native PCIe PME signaling even if the BIOS refuses
 			to allow the kernel to control the relevant PCIe config
 			registers.
+		nomsi	Do not use MSI for native PCIe PME signaling (this makes
+			all PCIe root ports use INTx for everything).
 
 	pcmv=		[HW,PCMCIA] BadgePAD 4