diff --git a/doc/features.txt b/doc/features.txt
index 5c5004c8..79cf422e 100644
--- a/doc/features.txt
+++ b/doc/features.txt
@@ -26,5 +26,5 @@ The hwsim uses new HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE flag attribute to
 tell the kernel that when the hwsim process dies, the radios it created
 should be removed. For testing tools it is beneficial if the newly
 created radio could be bound to the lifetime of the netlink socket.
-The old behaviour i.e., radio is not destroyed when hwsim quits,
-is used if one starts the hwsim with -k (--keep) command line option.
+Alternatively, using the hwsim '-k (--keep)' command line option instructs
+hwsim to not destroy the created radio automatically.