diff --git a/Telegram/build/prepare/prepare.py b/Telegram/build/prepare/prepare.py
index 2093953193..84a4cbeef1 100644
--- a/Telegram/build/prepare/prepare.py
+++ b/Telegram/build/prepare/prepare.py
@@ -420,7 +420,7 @@ win:
     del msys64.exe
 
     bash -c "pacman-key --init; pacman-key --populate; pacman -Syu --noconfirm"
-    pacman -S --noconfirm mingw-w64-x86_64-perl mingw-w64-x86_64-nasm mingw-w64-x86_64-yasm mingw-w64-x86_64-ninja
+    pacman -Syu --noconfirm mingw-w64-x86_64-perl mingw-w64-x86_64-nasm mingw-w64-x86_64-yasm mingw-w64-x86_64-ninja
 
     SET PATH=%PATH_BACKUP_%
 """, 'ThirdParty')