diff --git a/module/actor/actor.js b/module/actor/actor.js
index 01566ef..8f1ce58 100644
--- a/module/actor/actor.js
+++ b/module/actor/actor.js
@@ -1,4 +1,4 @@
-import { fromIdUuid } from "../mosh";
+import { fromIdUuid } from "../mosh.js";
 
 /**
  * Extend the base Actor entity by defining a custom roll data structure which is ideal for the Simple system.
diff --git a/module/actor/ship-sheet-sbt.js b/module/actor/ship-sheet-sbt.js
index 76b7582..c68fd79 100644
--- a/module/actor/ship-sheet-sbt.js
+++ b/module/actor/ship-sheet-sbt.js
@@ -1,4 +1,4 @@
-import { fromIdUuid } from "../mosh";
+import { fromIdUuid } from "../mosh.js";
 
 /**
  * Extend the basic ActorSheet with some very simple modifications
diff --git a/module/windows/ship-megadamage.js b/module/windows/ship-megadamage.js
index 8c780db..712a8d3 100644
--- a/module/windows/ship-megadamage.js
+++ b/module/windows/ship-megadamage.js
@@ -1,4 +1,4 @@
-import { fromIdUuid } from "../mosh";
+import { fromIdUuid } from "../mosh.js";
 export class DLShipMegaDamage extends FormApplication {
     static get defaultOptions() {
         const options = super.defaultOptions;