diff --git a/lib/libc/sys/pdfork.2 b/lib/libc/sys/pdfork.2
index 0808fbc91076..b72c28590c09 100644
--- a/lib/libc/sys/pdfork.2
+++ b/lib/libc/sys/pdfork.2
@@ -1,5 +1,5 @@
 .\"
-.\" Copyright (c) 2009-2010 Robert N. M. Watson
+.\" Copyright (c) 2009-2010, 2012 Robert N. M. Watson
 .\" All rights reserved.
 .\"
 .\" This software was developed at the University of Cambridge Computer
@@ -57,7 +57,7 @@ a variant of
 .Xr fork 2 ,
 which, if successful, returns a process descriptor in the integer pointed to
 by
-.Fa pidp .
+.Fa fdp .
 Processes created via
 .Fn pdfork
 will not cause