--- a/plugins/mod_websocket.lua	Sun Jul 16 21:04:42 2023 +0200
+++ b/plugins/mod_websocket.lua	Sun Jul 16 20:49:33 2023 +0200
@@ -31,7 +31,7 @@
 local stanza_size_limit = module:get_option_number("c2s_stanza_size_limit", 1024 * 256);
 local frame_buffer_limit = module:get_option_number("websocket_frame_buffer_limit", 2 * stanza_size_limit);
 local frame_fragment_limit = module:get_option_number("websocket_frame_fragment_limit", 8);
-local stream_close_timeout = module:get_option_number("c2s_close_timeout", 5);
+local stream_close_timeout = module:get_option_period("c2s_close_timeout", 5);
 local consider_websocket_secure = module:get_option_boolean("consider_websocket_secure");
 local cross_domain = module:get_option("cross_domain_websocket");
 if cross_domain ~= nil then