diff --git a/.gitattributes b/.gitattributes
index 2b07aa7d6..298cddfae 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -12,3 +12,10 @@
 *.svg   text
 
 VERSION export-subst
+
+# Ignore all test and documentation with "export-ignore".
+/.gitattributes     export-ignore
+/.gitignore         export-ignore
+/.travis.yml        export-ignore
+/phpunit.xml.dist   export-ignore
+/tests              export-ignore
\ No newline at end of file