diff --git a/language/en_UK/help/thumbnail.html b/language/en_UK/help/thumbnail.html
index aeff168b6..094a9a84e 100644
--- a/language/en_UK/help/thumbnail.html
+++ b/language/en_UK/help/thumbnail.html
@@ -19,11 +19,11 @@ class="filename">include/config_default.inc.php</span> file).</dd>
 
   <dt>Number of thumbnails to create</dt>
 
-  <dd>Do not try to miniaturize too many pictures at once. The miniaturization process does use a lot of CPU. If your Piwigo gallery is hosted by a free provider, too high CPU a load might lead to the withdrawal of your website.</dd>
+  <dd>Do not try to miniaturize too many photos at once. The miniaturization process does use a lot of CPU. If your Piwigo gallery is hosted by a free provider, too high CPU a load might lead to the withdrawal of your website.</dd>
 
   <dt>File format</dt>
 
   <dd>Thumbnails are created in JPEG file format. They
-  can be created from PNG and JPEG pictures only.</dd>
+  can be created from PNG and JPEG photos only.</dd>
 
 </dl>