diff --git a/apps/server/scripts/build.ts b/apps/server/scripts/build.ts
index 73a3aeaee3..14401080e2 100644
--- a/apps/server/scripts/build.ts
+++ b/apps/server/scripts/build.ts
@@ -14,8 +14,11 @@ async function main() {
     build.copyNodeModules([ "better-sqlite3", "bindings", "file-uri-to-path" ]);
 
     // Tesseract.js worker runs in a separate worker_thread and needs its
-    // source files (+ WASM core) on disk — they cannot be bundled.
-    build.copyNodeModules([ "tesseract.js", "tesseract.js-core", "wasm-feature-detect" ]);
+    // source files (+ WASM core + transitive deps) on disk — they cannot be bundled.
+    build.copyNodeModules([
+        "tesseract.js", "tesseract.js-core", "wasm-feature-detect",
+        "regenerator-runtime", "is-url", "bmp-js"
+    ]);
     build.copy("/node_modules/ckeditor5/dist/ckeditor5-content.css", "ckeditor5-content.css");
 
     build.buildFrontend();
diff --git a/apps/server/src/services/ocr/processors/image_processor.ts b/apps/server/src/services/ocr/processors/image_processor.ts
index a7a09acd85..15bfe78085 100644
--- a/apps/server/src/services/ocr/processors/image_processor.ts
+++ b/apps/server/src/services/ocr/processors/image_processor.ts
@@ -1,11 +1,9 @@
 import fs from 'fs';
-import path from 'path';
 import Tesseract from 'tesseract.js';
 
 import dataDirs from '../../data_dir.js';
 import log from '../../log.js';
 import options from '../../options.js';
-import { getResourceDir, isDev } from '../../utils.js';
 import { OCRProcessingOptions,OCRResult } from '../ocr_service.js';
 import { FileProcessor } from './file_processor.js';
 
@@ -81,27 +79,14 @@ export class ImageProcessor extends FileProcessor {
         fs.mkdirSync(dataDirs.OCR_CACHE_DIR, { recursive: true });
 
         log.info(`Initializing Tesseract worker for language(s): ${language}`);
-
-        const workerOptions: Record<string, unknown> = {
+        this.worker = await Tesseract.createWorker(language, 1, {
             cachePath: dataDirs.OCR_CACHE_DIR,
             logger: (m: { status: string; progress: number }) => {
                 if (m.status === 'recognizing text') {
                     log.info(`Image OCR progress (${language}): ${Math.round(m.progress * 100)}%`);
                 }
             }
-        };
-
-        // In production the server is bundled, so tesseract.js's default
-        // __dirname-based worker path is wrong. Point it at the copy we
-        // place in dist/node_modules during the build step.
-        if (!isDev) {
-            workerOptions.workerPath = path.join(
-                getResourceDir(),
-                'node_modules', 'tesseract.js', 'src', 'worker-script', 'node', 'index.js'
-            );
-        }
-
-        this.worker = await Tesseract.createWorker(language, 1, workerOptions);
+        });
         this.currentLanguage = language;
     }
 
diff --git a/scripts/build-utils.ts b/scripts/build-utils.ts
index 07a93a256e..7349cecb2b 100644
--- a/scripts/build-utils.ts
+++ b/scripts/build-utils.ts
@@ -53,7 +53,8 @@ export default class BuildHelper {
                 "better-sqlite3",
                 "pdfjs-dist",
                 "./xhr-sync-worker.js",
-                "vite"
+                "vite",
+                "tesseract.js"
             ],
             metafile: true,
             splitting: false,