diff --git a/app/dialogs/extensions-dialog.c b/app/dialogs/extensions-dialog.c
index a2ffa9e64e..f200bff592 100644
--- a/app/dialogs/extensions-dialog.c
+++ b/app/dialogs/extensions-dialog.c
@@ -73,7 +73,7 @@ extensions_dialog_new (Gimp *gimp)
   GtkWidget   *widget;
   GtkTreeIter  top_iter;
 
-  dialog = gimp_dialog_new (_("Extensions"), "gimp-extensions",
+  dialog = gimp_dialog_new (C_("GIMP extensions", "Extensions"), "gimp-extensions",
                             NULL, 0, NULL,
                             GIMP_HELP_EXTENSIONS_DIALOG,
                             _("_OK"), GTK_RESPONSE_OK,
diff --git a/app/widgets/gimpfileprocview.c b/app/widgets/gimpfileprocview.c
index 8f178e019e..f7bd44ccb7 100644
--- a/app/widgets/gimpfileprocview.c
+++ b/app/widgets/gimpfileprocview.c
@@ -208,7 +208,7 @@ gimp_file_proc_view_new (Gimp        *gimp,
   gtk_tree_view_append_column (view, column);
 
   column = gtk_tree_view_column_new ();
-  gtk_tree_view_column_set_title (column, _("Extensions"));
+  gtk_tree_view_column_set_title (column, C_("File extension", "Extensions"));
 
   cell = gtk_cell_renderer_text_new ();
   gtk_tree_view_column_pack_start (column, cell, TRUE);