diff --git a/webapp/src/app.tsx b/webapp/src/app.tsx
index 11f984cff3ae..e5184c05b3ff 100644
--- a/webapp/src/app.tsx
+++ b/webapp/src/app.tsx
@@ -4611,6 +4611,7 @@ export class ProjectView
         let f = pkg.mainEditorPkg().lookupFile("this/" + pxt.CONFIG_NAME);
         let config = JSON.parse(f.content) as pxt.PackageConfig;
         config.name = name;
+        config.description = description || config.description;
         return f.setContentAsync(pxt.Package.stringifyConfig(config))
             .then(() => {
                 if (this.state.header)