diff --git a/.gitattributes b/.gitattributes
index d648f70..2eee706 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -12,3 +12,6 @@ composer.lock export-ignore
 infection.json.dist export-ignore
 Makefile export-ignore
 README.md export-ignore
+
+# Diffing
+*.php diff=php