diff --git a/bin/ps/ps.1 b/bin/ps/ps.1
index 2f1be640b1af..2c04c21ae072 100644
--- a/bin/ps/ps.1
+++ b/bin/ps/ps.1
@@ -431,7 +431,7 @@ The process is being traced or debugged.
 An abbreviation for the pathname of the controlling terminal, if any.
 The abbreviation consists of the three letters following
 .Pa /dev/tty ,
-or, for psuedo-terminals, the corresponding entry in
+or, for pseudo-terminals, the corresponding entry in
 .Pa /dev/pts .
 This is followed by a
 .Ql -