diff --git a/omegat/project_save.tmx b/omegat/project_save.tmx
index 59bf25c..281c35a 100644
--- a/omegat/project_save.tmx
+++ b/omegat/project_save.tmx
@@ -27416,6 +27416,14 @@ leurs arguments différemment des fonctions (les arguments ne sont pas
         <seg>mode « Diff »</seg>
       </tuv>
     </tu>
+    <tu>
+      <tuv lang="en">
+        <seg>Diff mode is a major mode used for the output of @kbd{M-x diff} and other similar commands.</seg>
+      </tuv>
+      <tuv lang="fr" changeid="Lilian" changedate="20220518T091519Z" creationid="Lilian" creationdate="20220518T091418Z">
+        <seg>Le mode « Diff » est un mode majeur utilisé pour la sortie de @kbd{M-x diff} et d'autres commandes similaires.</seg>
+      </tuv>
+    </tu>
     <tu>
       <tuv lang="en">
         <seg>Diff the buffer against its corresponding file, so you can see what changes you would be saving.</seg>