diff --git a/Mk1RPMInternal/Mk1RPMInternal-2.11b.ckan b/Mk1RPMInternal/Mk1RPMInternal-2.11b.ckan
index e88eacc01a..e0a858e0ec 100644
--- a/Mk1RPMInternal/Mk1RPMInternal-2.11b.ckan
+++ b/Mk1RPMInternal/Mk1RPMInternal-2.11b.ckan
@@ -15,6 +15,9 @@
     "depends": [
         {
             "name": "ModuleManager"
+        },
+        {
+            "name": "RasterPropMonitor-Core"
         }
     ],
     "download": "https://spacedock.info/mod/377/Mk1%20Cockpit%20RPM%20Internals/download/2.11b",