diff --git a/lib/Lutim/Controller.pm b/lib/Lutim/Controller.pm
index 0ed3c02..a68d16a 100644
--- a/lib/Lutim/Controller.pm
+++ b/lib/Lutim/Controller.pm
@@ -112,7 +112,7 @@ sub modify {
         $c->app->log->info('[UNSUCCESSFUL] someone tried to modify '.$short.' but it does\'nt exist.');
 
         # Image never existed
-        my $msg = $c->l('image_not_found', $short);
+        my $msg = $c->l('image_mod_not_found', $short);
         if (defined($c->param('format')) && $c->param('format') eq 'json') {
             return $c->render(
                 json => {
diff --git a/lib/Lutim/I18N/en.pm b/lib/Lutim/I18N/en.pm
index 9883f27..386f160 100644
--- a/lib/Lutim/I18N/en.pm
+++ b/lib/Lutim/I18N/en.pm
@@ -86,7 +86,7 @@ our %Lexicon = (
     'already_deleted'       => 'The image [_1] has already been deleted.',
     'install_as_webapp'     => 'Install webapp',
     'image_delay_modified'  => 'The image\'s delay has been successfully modified',
-    'image_not_found'       => 'Unable to find the image [_1].',
+    'image_mod_not_found'   => 'Unable to find the image [_1].',
     'modify_image_error'    => 'Error while trying to modify the image.',
 );
 
diff --git a/lib/Lutim/I18N/fr.pm b/lib/Lutim/I18N/fr.pm
index 1f12dff..87dbc88 100644
--- a/lib/Lutim/I18N/fr.pm
+++ b/lib/Lutim/I18N/fr.pm
@@ -86,7 +86,7 @@ our %Lexicon = (
     'already_deleted'       => 'L\'image [_1] a déjà été supprimée.',
     'install_as_webapp'     => 'Installer la webapp',
     'image_delay_modified'  => 'Le délai de l\'image a été modifié avec succès.',
-    'image_not_found'       => 'Impossible de trouver l\'image [_1].',
+    'image_mod_not_found'   => 'Impossible de trouver l\'image [_1].',
     'modify_image_error'    => 'Une erreur est survenue lors de la tentative de modification de l\'image.',
 );