diff --git a/package.json b/package.json
index 280cb7f..45d338d 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,6 @@
 {
   "version": "1.0.18",
+  "license": "MIT",
   "name": "jbrowse-plugin-msaview",
   "keywords": [
     "jbrowse",