diff --git a/src/frontends/qt4/ui/RefUi.ui b/src/frontends/qt4/ui/RefUi.ui
index 40bd8c53cc..daad34192c 100644
--- a/src/frontends/qt4/ui/RefUi.ui
+++ b/src/frontends/qt4/ui/RefUi.ui
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>RefUi</class>
  <widget class="QDialog" name="RefUi">