diff --git a/offlineimap.conf b/offlineimap.conf
index 8558c3c..0e517a6 100644
--- a/offlineimap.conf
+++ b/offlineimap.conf
@@ -988,6 +988,9 @@ remoteuser = username
 #  - holdconnectionopen: to be true
 #  - keepalive: to be 29 minutes unless you specify otherwise
 #
+# The presynchook and postsynchook are executed for each new synchronisation per
+# folder.
+#
 # This feature isn't complete and may well have problems. See the "Known Issues"
 # entry in the manual for more details.
 #