diff --git a/src/becca/becca.ts b/src/becca/becca.ts
index 07f8cc0dc..d4270fe09 100644
--- a/src/becca/becca.ts
+++ b/src/becca/becca.ts
@@ -1,6 +1,6 @@
 "use strict";
 
-import Becca from "./becca-interface";
+import Becca from "./becca-interface.js";
 
 const becca = new Becca();
 
diff --git a/src/becca/entities/abstract_becca_entity.ts b/src/becca/entities/abstract_becca_entity.ts
index 1259217df..0016b2a07 100644
--- a/src/becca/entities/abstract_becca_entity.ts
+++ b/src/becca/entities/abstract_becca_entity.ts
@@ -9,7 +9,7 @@ import cls from "../../services/cls.js";
 import log from "../../services/log.js";
 import protectedSessionService from "../../services/protected_session.js";
 import blobService from "../../services/blob.js";
-import Becca, { ConstructorData } from '../becca-interface';
+import Becca, { ConstructorData } from '../becca-interface.js';
 import becca from "../becca.js";
 
 interface ContentOpts {
diff --git a/src/becca/entities/bnote.ts b/src/becca/entities/bnote.ts
index 07204245e..ccfe32918 100644
--- a/src/becca/entities/bnote.ts
+++ b/src/becca/entities/bnote.ts
@@ -15,7 +15,7 @@ import eventService from "../../services/events.js";
 import { AttachmentRow, AttributeType, NoteRow, NoteType, RevisionRow } from './rows.js';
 import BBranch from "./bbranch.js";
 import BAttribute from "./battribute.js";
-import { NotePojo } from '../becca-interface';
+import { NotePojo } from '../becca-interface.js';
 import searchService from "../../services/search/services/search.js";
 import cloningService, { CloneResponse } from "../../services/cloning.js";
 import noteService from "../../services/notes.js";
diff --git a/src/becca/entity_constructor.ts b/src/becca/entity_constructor.ts
index eb1b052a6..49476961c 100644
--- a/src/becca/entity_constructor.ts
+++ b/src/becca/entity_constructor.ts
@@ -1,4 +1,4 @@
-import { ConstructorData } from './becca-interface';
+import { ConstructorData } from './becca-interface.js';
 import AbstractBeccaEntity from "./entities/abstract_becca_entity.js";
 import BAttachment from "./entities/battachment.js";
 import BAttribute from "./entities/battribute.js";
diff --git a/src/routes/api/revisions.ts b/src/routes/api/revisions.ts
index b64ce1bdc..b250e8ec0 100644
--- a/src/routes/api/revisions.ts
+++ b/src/routes/api/revisions.ts
@@ -12,7 +12,7 @@ import eraseService from "../../services/erase.js";
 import { Request, Response } from 'express';
 import BRevision from "../../becca/entities/brevision.js";
 import BNote from "../../becca/entities/bnote.js";
-import { NotePojo } from '../../becca/becca-interface';
+import { NotePojo } from '../../becca/becca-interface.js';
 
 interface NotePath {
     noteId: string;
diff --git a/src/services/backend_script_api.ts b/src/services/backend_script_api.ts
index 01f20246c..2f6caa07d 100644
--- a/src/services/backend_script_api.ts
+++ b/src/services/backend_script_api.ts
@@ -31,7 +31,7 @@ import BRevision from "../becca/entities/brevision.js";
 import BEtapiToken from "../becca/entities/betapi_token.js";
 import BOption from "../becca/entities/boption.js";
 import { AttributeRow, AttributeType, NoteType } from '../becca/entities/rows.js';
-import Becca from '../becca/becca-interface';
+import Becca from '../becca/becca-interface.js';
 import { NoteParams } from './note-interface.js';
 import { ApiParams } from './backend_script_api_interface';
 
diff --git a/src/services/cloning.ts b/src/services/cloning.ts
index 1176ff37a..6f35e671f 100644
--- a/src/services/cloning.ts
+++ b/src/services/cloning.ts
@@ -1,11 +1,11 @@
 "use strict";
 
-import sql from './sql';
-import eventChangesService from './entity_changes';
-import treeService from './tree';
-import BBranch from '../becca/entities/bbranch';
-import becca from '../becca/becca';
-import log from './log';
+import sql from './sql.js';
+import eventChangesService from './entity_changes.js';
+import treeService from './tree.js';
+import BBranch from '../becca/entities/bbranch.js';
+import becca from '../becca/becca.js';
+import log from './log.js';
 
 export interface CloneResponse {
     success: boolean;