diff --git a/app/src/main/assets/about.htm b/app/src/main/assets/about.htm
index 7ba4b90..37ada69 100644
--- a/app/src/main/assets/about.htm
+++ b/app/src/main/assets/about.htm
@@ -17,7 +17,7 @@
 <H3>This software released under GNU General Public License 3</H3>
 <p>You can find source code at https://patrice.asgardius.company/gitea/asgardius/s3manager
 <br>
-    You need to setup a pdf.js server to use pdf viewer. Just download latest version from official website and upload to any web server with ssl on same root domain than S3 server (can be same subdomain or a different one). Then set url to pdfjs root folder like https://example.com/pdfjs-dist
+    You need to setup a pdf.js server to use pdf viewer. Just download latest version from official website and upload to any web server with ssl on same root domain than S3 server (can be same subdomain or a different one in some cases). Then set url to pdfjs root folder like https://example.com/pdfjs-dist
     <br>
 You can find technical support on official forum https://forum.asgardius.company/t/s3-manager</p>
 </Body>