diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..5fe0e2c
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,5 @@
+/.* export-ignore
+/data/ export-ignore
+/scripts/ export-ignore
+/LICENSE export-ignore
+/README.md export-ignore
diff --git a/install-php-extensions b/install-php-extensions
index 7ac8e60..fafaa1a 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -4,7 +4,9 @@
 #
 # Copyright (c) Michele Locati, 2018
 #
-# MIT license
+# Source: https://github.com/mlocati/docker-php-extension-installer
+#
+# License: MIT - see https://github.com/mlocati/docker-php-extension-installer/blob/master/LICENSE
 
 # Let's set a sane environment
 set -o errexit