diff --git a/man/man1/ps.1 b/man/man1/ps.1
index b7c4f6ce4..c7d05212c 100644
--- a/man/man1/ps.1
+++ b/man/man1/ps.1
@@ -55,8 +55,8 @@ explained below).  The long listing contains:
   CMD	Command line arguments of the process.
 .PP
 .PP
-The files \fI/dev/{mem,kmem}\fR are used to read the system tables and command
-line arguments from.  Terminal names in \fI/dev\fR are used to generate the 
+The \fI/proc\fR file system is used to obtain the process information.
+Terminal names in \fI/dev\fR are used to generate the
 mnemonic names in the TTY column, so \fIps\fR is independent of terminal naming
 conventions.
 .SH NOTES