diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 72bb2a8649df..da519d3c6bf6 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1974,8 +1974,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 	noreplace-smp	[X86-32,SMP] Don't replace SMP instructions
 			with UP alternatives
 
-	noresidual	[PPC] Don't use residual data on PReP machines.
-
 	nordrand	[X86] Disable the direct use of the RDRAND
 			instruction even if it is supported by the
 			processor.  RDRAND is still available to user