diff --git a/man2/ioprio_set.2 b/man2/ioprio_set.2
index 1a0959641..34628987b 100644
--- a/man2/ioprio_set.2
+++ b/man2/ioprio_set.2
@@ -72,7 +72,7 @@ is a user ID identifying all of the processes that
 have a matching real UID.
 .PP
 If
-.I who
+.I which
 is specified as
 .B IOPRIO_WHO_PGRP
 or