diff --git a/code/modules/mob/living/simple_animal/bot/bot.dm b/code/modules/mob/living/simple_animal/bot/bot.dm
index c03dcb1b381..0478b375a99 100644
--- a/code/modules/mob/living/simple_animal/bot/bot.dm
+++ b/code/modules/mob/living/simple_animal/bot/bot.dm
@@ -918,7 +918,7 @@ Pass a positive integer as an argument to override a bot's default speed.
 	var/datum/browser/popup = new(M,window_id,window_name,350,600)
 	popup.set_content(dat)
 	popup.open()
-	onclose(M, window_id, src)
+	onclose(M, window_id, UID())
 	return
 
 /mob/living/simple_animal/bot/proc/update_controls()