diff --git a/modules/pegasus-actor.js b/modules/pegasus-actor.js
index bb9b115..e4b3f6d 100644
--- a/modules/pegasus-actor.js
+++ b/modules/pegasus-actor.js
@@ -1997,11 +1997,11 @@ export class PegasusActor extends Actor {
       if (spaceList && spaceList.length > 0) {
         space = spaceList.reduce((value, item2) => value + Number(item2.system.space), 0)
       }
-      modules.usedvms = space
-      if (modules.totalvms != this.system.modules.totalvms || modules.usedvms != this.system.modules.usedvms) {
+      modules.vmsused = space
+      if (modules.totalvms != this.system.modules.totalvms || modules.usedvms != this.system.modules.vmsused) {
         this.update({ 'system.modules': modules })
       }
-      if (modules.usedvms > modules.totalvms) {
+      if (modules.vmsused > modules.totalvms) {
         ui.notifications.warn("Warning! No more space available in cargo !!")
       }