diff --git a/Qt/sim-test.ui b/Qt/sim-test.ui
index 653438f..ae89065 100644
--- a/Qt/sim-test.ui
+++ b/Qt/sim-test.ui
@@ -37,6 +37,12 @@
       <property name="lineWidth">
        <number>4</number>
       </property>
+      <property name="minScaleArc">
+       <double>20.000000000000000</double>
+      </property>
+      <property name="maxScaleArc">
+       <double>340.000000000000000</double>
+      </property>
      </widget>
     </item>
     <item row="4" column="1">