diff --git a/submodules/TelegramCore/FlatSerialization/.gitignore b/submodules/TelegramCore/FlatSerialization/.gitignore
new file mode 100644
index 0000000000..4fb5eb1907
--- /dev/null
+++ b/submodules/TelegramCore/FlatSerialization/.gitignore
@@ -0,0 +1 @@
+Sources/
\ No newline at end of file