diff --git a/src/plugins/plugins.c b/src/plugins/plugins.c
index 32e1247e..73f3f873 100644
--- a/src/plugins/plugins.c
+++ b/src/plugins/plugins.c
@@ -347,7 +347,7 @@ plugins_on_room_history_message(const char *const room, const char *const nick,
     GSList *curr = plugins;
     while (curr) {
         ProfPlugin *plugin = curr->data;
-        plugin->on_room_history_message(plugin, room, nick, message, NULL);
+        plugin->on_room_history_message(plugin, room, nick, message, timestamp_str);
         curr = g_slist_next(curr);
     }