diff --git a/.gitattributes b/.gitattributes
index 8b5b26e..56783b6 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,5 @@
 IPython/.git_commit_info.ini export-subst
 * text=auto
+*.py diff=python
+*.js diff=javascript
+*.html diff=html