diff --git a/src/common/config.py b/src/common/config.py
index a3c90176b..434754546 100644
--- a/src/common/config.py
+++ b/src/common/config.py
@@ -256,6 +256,7 @@ class Config:
 		'subscribe_activity': [opt_bool, True],
 		'subscribe_tune': [opt_bool, True],
 		'attach_notifications_to_systray': [opt_bool, False, _('If True, notification windows from notification-daemon will be attached to systray icon.')],
+		'check_idle_every_foo_seconds': [opt_int, 2, _('Choose interval between 2 checks of idleness.')],
 	}
 
 	__options_per_key = {
diff --git a/src/gajim.py b/src/gajim.py
index 27718dddf..8683dc183 100755
--- a/src/gajim.py
+++ b/src/gajim.py
@@ -3047,7 +3047,8 @@ class Interface:
 			gobject.timeout_add(200, self.process_connections)
 		else:
 			gobject.timeout_add_seconds(2, self.process_connections)
-		gobject.timeout_add_seconds(10, self.read_sleepy)
+		gobject.timeout_add_seconds(gajim.config.get(
+			'check_idle_every_foo_seconds'), self.read_sleepy)
 
 if __name__ == '__main__':
 	def sigint_cb(num, stack):