diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000000..49cb19117c675
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+# Normalize line endings to avoid spurious failures in the core test suite on Windows.
+*html text eol=lf
\ No newline at end of file