diff --git a/ui/mainwindow.ui b/ui/mainwindow.ui
index 241b18f..b6e380e 100644
--- a/ui/mainwindow.ui
+++ b/ui/mainwindow.ui
@@ -21,7 +21,7 @@
   </property>
   <widget class="QWidget" name="centralwidget">
    <property name="sizePolicy">
-    <sizepolicy hsizetype="Expanding" vsizetype="Minimum">
+    <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
      <horstretch>0</horstretch>
      <verstretch>0</verstretch>
     </sizepolicy>