diff --git a/drmr.ttl b/drmr.ttl
index ae783b8..8c76c21 100644
--- a/drmr.ttl
+++ b/drmr.ttl
@@ -7,7 +7,7 @@
 @prefix ui:   <http://lv2plug.in/ns/extensions/ui#>.
 
 <http://github.com/nicklan/drmr>
-  a lv2:Plugin;
+  a lv2:InstrumentPlugin, lv2:Plugin;
   lv2:binary <drmr.so>;
   doap:name "DrMr Sampler";
   doap:maintainer [