diff --git a/RealSolarSystem.netkan b/RealSolarSystem.netkan
index 15468827..a2973437 100644
--- a/RealSolarSystem.netkan
+++ b/RealSolarSystem.netkan
@@ -34,6 +34,7 @@ recommends:
   - name: RSSDateTimeFormatter
   - name: RSSVE-Textures
   - name: Parallax
+  - name: Principia
 install:
   - find: RealSolarSystem
     install_to: GameData