diff --git a/widgets/mainwindow.ui b/widgets/mainwindow.ui
index ea1756a84..e36aa078c 100644
--- a/widgets/mainwindow.ui
+++ b/widgets/mainwindow.ui
@@ -1322,7 +1322,7 @@ When not checked you can view the calibration results.</string>
                       <item>
                        <widget class="HintedSpinBox" name="sbFtol">
                         <property name="sizePolicy">
-                         <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+                         <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
                           <horstretch>0</horstretch>
                           <verstretch>0</verstretch>
                          </sizepolicy>
@@ -1635,6 +1635,9 @@ When not checked you can view the calibration results.</string>
                       <property name="toolTip">
                        <string>Maximum drift rate in units of symbol rate per transmission.</string>
                       </property>
+                      <property name="alignment">
+                       <set>Qt::AlignCenter</set>
+                      </property>
                       <property name="prefix">
                        <string>Max Drift  </string>
                       </property>