diff --git a/man2/ioprio_set.2 b/man2/ioprio_set.2
index c3daa8e3e..cc1cb26b5 100644
--- a/man2/ioprio_set.2
+++ b/man2/ioprio_set.2
@@ -363,7 +363,8 @@ Suitable definitions can be found in
 .BR ionice (1),
 .BR getpriority (2),
 .BR open (2),
-.BR capabilities (7)
+.BR capabilities (7),
+.BR cgroups (7)
 
 .I Documentation/block/ioprio.txt
 in the Linux kernel source tree