diff --git a/.gitattributes b/.gitattributes
index 1a79d0b894c..f0d70e87e1f 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1 +1,3 @@
 lib/elixir/test/elixir/fixtures/*.txt text eol=lf
+*.ex diff=elixir
+*.exs diff=elixir