diff --git a/VollmetallAlternativePropulsionSystem/VollmetallAlternativePropulsionSystem-3.ckan b/VollmetallAlternativePropulsionSystem/VollmetallAlternativePropulsionSystem-3.ckan
index ab8391a4b6..ae2c09b514 100644
--- a/VollmetallAlternativePropulsionSystem/VollmetallAlternativePropulsionSystem-3.ckan
+++ b/VollmetallAlternativePropulsionSystem/VollmetallAlternativePropulsionSystem-3.ckan
@@ -2,7 +2,7 @@
     "spec_version": "v1.18",
     "identifier": "VollmetallAlternativePropulsionSystem",
     "name": "VM Vollmetall Alternative Propulsion System",
-    "abstract": "adds alternative propulsion system to make a more sci fi aproach in flyng (fly like in the expanse. without the need of infinite fuel cheats)",
+    "abstract": "adds alternative propulsion system to make a more sci fi aproach in flyng (fly like in the expanse. without the need of infinite fuel cheats), needs B9 Part Switch",
     "author": "Lyzz",
     "version": "3",
     "ksp_version": "1.12.3",