diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..6abdfb8
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,10 @@
+# This file was generated by the lean package validator (http://git.io/lean-package-validator).
+
+* text=auto eol=lf
+
+* export-ignore
+
+composer.json -export-ignore
+LICENSE -export-ignore
+src/ -export-ignore
+src/** -export-ignore