diff --git a/.gitattributes b/.gitattributes
index 022e4cde51e..cee8bb8f2ad 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,3 +1,6 @@
+# Always check-out / check-in files with LF line endings.
+* text=auto eol=lf
+
 hack/verify-flags/known-flags.txt merge=union
 test/test_owners.csv merge=union