diff --git a/Telegram/SourceFiles/mtproto/details/mtproto_dc_key_creator.cpp b/Telegram/SourceFiles/mtproto/details/mtproto_dc_key_creator.cpp
index b9532ec089..7b1ca17f0f 100644
--- a/Telegram/SourceFiles/mtproto/details/mtproto_dc_key_creator.cpp
+++ b/Telegram/SourceFiles/mtproto/details/mtproto_dc_key_creator.cpp
@@ -14,6 +14,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "scheme.h"
 #include "logs.h"
 
+#include <cmath>
+
 namespace MTP::details {
 namespace {