diff --git a/io.github.dfandrich.gpscorrelate.metainfo.xml.in b/io.github.dfandrich.gpscorrelate.metainfo.xml.in
index 20cf8a9..79bc0de 100644
--- a/io.github.dfandrich.gpscorrelate.metainfo.xml.in
+++ b/io.github.dfandrich.gpscorrelate.metainfo.xml.in
@@ -22,6 +22,7 @@
     <screenshot type="default">
       <image>https://dfandrich.github.io/gpscorrelate/corr.png</image>
       <image xml:lang="fr">https://dfandrich.github.io/gpscorrelate/fr/corr.png</image>
+	  <_caption>Main window</_caption>
     </screenshot>
   </screenshots>
   <branding>