diff --git a/man7/cgroups.7 b/man7/cgroups.7
index 3552cafa1..8e106d8e7 100644
--- a/man7/cgroups.7
+++ b/man7/cgroups.7
@@ -1408,24 +1408,27 @@ In other words, the only explicit transition that is possible is to convert a
 cgroup to type
 .IR threaded .
 .IP *
-The string
+The effect of writing
 .IR """threaded"""
-can be written only if the current value in
-.IR cgroup.type
-is one of the following
+depends on the current value in
+.IR cgroup.type ,
+as follows:
 .RS
 .IP \(bu 3
-.IR domain ,
-to start the creation of a threaded subtree via
+.IR domain
+or
+.IR "domain threaded" :
+start the creation of a threaded subtree
+(whose root is the parent of this cgroup) via
 the first of the pathways described above;
 .IP \(bu
-.IR "domain\ invalid" ,
-to convert one of the cgroups in a threaded subtree into a usable (i.e.,
+.IR "domain\ invalid" :
+convert one of the cgroups in a threaded subtree into a usable (i.e.,
 .IR threaded )
 state;
 .IP \(bu
-.IR threaded ,
-which has no effect (a "no-op").
+.IR threaded :
+no effect (a "no-op").
 .RE
 .IP *
 We can't write to a