diff --git a/ui/effects/spoiler_mess.cpp b/ui/effects/spoiler_mess.cpp
index f2183dd..997a5fc 100644
--- a/ui/effects/spoiler_mess.cpp
+++ b/ui/effects/spoiler_mess.cpp
@@ -19,6 +19,8 @@
 
 #include <crl/crl_async.h>
 #include <xxhash.h>
+#include <mutex>
+#include <condition_variable>
 
 namespace Ui {
 namespace {