diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..0d93112
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,15 @@
+{
+  "name": "vertlach/voteny",
+  "type": "mediawiki-extension",
+  "require": {
+    "composer/installers": "1.*,>=1.0.1"
+  },
+  "require-dev": {
+    "mediawiki/mediawiki-codesniffer": "^18.0.0"
+  },
+  "config": {
+    "allow-plugins": {
+      "composer/installers": true
+    }
+  }
+}