diff --git a/.java-version b/.java-version
deleted file mode 100644
index f2052c3e9a..0000000000
--- a/.java-version
+++ /dev/null
@@ -1 +0,0 @@
-openjdk64-11.0.2
diff --git a/grobid-service/src/main/resources/web/resources/pdf.js/web/viewer.html b/grobid-service/src/main/resources/web/resources/pdf.js/web/viewer.html
index 8fc2462969..f7fb61930e 100644
--- a/grobid-service/src/main/resources/web/resources/pdf.js/web/viewer.html
+++ b/grobid-service/src/main/resources/web/resources/pdf.js/web/viewer.html
@@ -38,7 +38,7 @@
 <!-- This snippet is used in production (included from viewer.html) -->
 <link rel="resource" type="application/l10n" href="locale/locale.properties"/>
 <script src="l10n.js"></script>
-<script src="../build/pdf.js"></script>
+<script src="../build_/pdf.js"></script>
 
 
 
diff --git a/grobid-service/src/main/resources/web/resources/pdf.js/web/viewer.js b/grobid-service/src/main/resources/web/resources/pdf.js/web/viewer.js
index ece31f2b93..126fab4da0 100644
--- a/grobid-service/src/main/resources/web/resources/pdf.js/web/viewer.js
+++ b/grobid-service/src/main/resources/web/resources/pdf.js/web/viewer.js
@@ -36,7 +36,7 @@ var DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT = 5000;
 
 function configure(PDFJS) {
   PDFJS.imageResourcesPath = './images/';
-  PDFJS.workerSrc = '../build/pdf.worker.js';
+  PDFJS.workerSrc = '../build_/pdf.worker.js';
   PDFJS.cMapUrl = '../web/cmaps/';
   PDFJS.cMapPacked = true;
 }