diff --git a/composer.json b/composer.json
index 49a055b..baa5b87 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,7 @@
 {
     "name": "mhe/imagetools",
     "description": "Tools for generating responsive images",
+    "license": "BSD-3-Clause",
     "authors": [
         {
             "name": "Martin Heise",