diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 1abd7e145357..9b16b640ce48 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1388,9 +1388,6 @@
 			Valid parameters: "on", "off"
 			Default: "on"
 
-	hisax=		[HW,ISDN]
-			See Documentation/isdn/README.HiSax.
-
 	hlt		[BUGS=ARM,SH]
 
 	hpet=		[X86-32,HPET] option to control HPET usage