diff --git a/mainwindow.ui b/mainwindow.ui
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -523,6 +523,12 @@
               <height>16777215</height>
              </size>
             </property>
+            <property name="maximum">
+             <double>1000.000000000000000</double>
+            </property>
+            <property name="value">
+             <double>1000.000000000000000</double>
+            </property>
            </widget>
           </item>
          </layout>