diff --git a/Documentation/vm/page_owner.rst b/Documentation/vm/page_owner.rst
index c4de6f8dabe994388d6d3307f397c4609b43ac30..65204d7f004f238f37b0654cd91bcc2033fdf7a1 100644
--- a/Documentation/vm/page_owner.rst
+++ b/Documentation/vm/page_owner.rst
@@ -125,7 +125,6 @@ Usage
    additional function:
 
 	Cull:
-		-c		Cull by comparing stacktrace instead of total block.
 		--cull <rules>
 				Specify culling rules.Culling syntax is key[,key[,...]].Choose a
 				multi-letter key from the **STANDARD FORMAT SPECIFIERS** section.