diff --git a/services/web/frontend/js/features/pdf-preview/util/output-files.js b/services/web/frontend/js/features/pdf-preview/util/output-files.js
index e1d04eff19..646c555cdb 100644
--- a/services/web/frontend/js/features/pdf-preview/util/output-files.js
+++ b/services/web/frontend/js/features/pdf-preview/util/output-files.js
@@ -167,6 +167,7 @@ function buildURL(file, pdfDownloadDomain) {
 }
 
 function normalizeFilePath(path, rootDocDirname) {
+  path = path.replace(/\/\//g, '/')
   path = path.replace(
     /^.*\/compiles\/[0-9a-f]{24}(-[0-9a-f]{24})?\/(\.\/)?/,
     ''