diff --git a/scripts/build/package.js b/scripts/build/package.js
index d312b6d0f..cb6829518 100644
--- a/scripts/build/package.js
+++ b/scripts/build/package.js
@@ -63,8 +63,10 @@ const build = async () => {
       escape(icon.path),
       escape(icon.source),
       escape(icon.hex),
-      icon.guidelines ? `'${escape(icon.guidelines)}'` : undefined,
-      licenseToObject(icon.license),
+      icon.guidelines ? `\n  guidelines: '${escape(icon.guidelines)}',` : '',
+      licenseToObject(icon.license)
+        ? `\n  license: ${JSON.stringify(licenseToObject(icon.license))},`
+        : '',
     );
   };
   const writeJs = async (filepath, rawJavaScript, opts = null) => {
diff --git a/scripts/build/templates/icon-object.js b/scripts/build/templates/icon-object.js
index bccadac24..80eea92ff 100644
--- a/scripts/build/templates/icon-object.js
+++ b/scripts/build/templates/icon-object.js
@@ -6,7 +6,5 @@
   },
   path: '%s',
   source: '%s',
-  hex: '%s',
-  guidelines: %s,
-  license: %s,
+  hex: '%s',%s%s
 }
diff --git a/types.d.ts b/types.d.ts
index 02ca65468..8ce48287b 100644
--- a/types.d.ts
+++ b/types.d.ts
@@ -25,6 +25,6 @@ export interface SimpleIcon {
   path: string;
   source: string;
   hex: string;
-  guidelines: string | undefined;
-  license: License | undefined;
+  guidelines?: string;
+  license?: License;
 }