diff --git a/.gitignore b/.gitignore
index e1da6ae..1c33d5e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -74,3 +74,6 @@ typings/
 
 # FuseBox cache
 .fusebox/
+
+# Composer-dependencies
+vendor/
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..76792bc
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,13 @@
+{
+    "name": "manuth/mantra",
+    "description": "A SilverStripe-theme called \"mantra\".",
+    "type": "silverstripe-theme",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Manuel Thalmann",
+            "email": "m@nuth.ch"
+        }
+    ],
+    "require": {}
+}