diff --git a/src/libs/vtools/dialogs/tools/dialogseamallowance.cpp b/src/libs/vtools/dialogs/tools/dialogseamallowance.cpp
index 576fa9a3c..146880f1c 100644
--- a/src/libs/vtools/dialogs/tools/dialogseamallowance.cpp
+++ b/src/libs/vtools/dialogs/tools/dialogseamallowance.cpp
@@ -592,6 +592,17 @@ void DialogSeamAllowance::CustomSAChanged(int row)
 {
     if (ui->listWidgetCustomSA->count() == 0 || row == -1 || row >= ui->listWidgetCustomSA->count())
     {
+        ui->comboBoxStartPoint->blockSignals(true);
+        ui->comboBoxStartPoint->clear();
+        ui->comboBoxStartPoint->blockSignals(false);
+
+        ui->comboBoxEndPoint->blockSignals(true);
+        ui->comboBoxEndPoint->clear();
+        ui->comboBoxEndPoint->blockSignals(false);
+
+        ui->comboBoxIncludeType->blockSignals(true);
+        ui->comboBoxIncludeType->clear();
+        ui->comboBoxIncludeType->blockSignals(false);
         return;
     }
 
diff --git a/src/libs/vtools/dialogs/tools/dialogseamallowance.ui b/src/libs/vtools/dialogs/tools/dialogseamallowance.ui
index 92caf7a2b..48093e66a 100644
--- a/src/libs/vtools/dialogs/tools/dialogseamallowance.ui
+++ b/src/libs/vtools/dialogs/tools/dialogseamallowance.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>559</width>
-    <height>476</height>
+    <width>476</width>
+    <height>504</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -301,11 +301,17 @@
             <property name="orientation">
              <enum>Qt::Horizontal</enum>
             </property>
+            <property name="opaqueResize">
+             <bool>true</bool>
+            </property>
             <widget class="QWidget" name="layoutWidget">
              <layout class="QFormLayout" name="formLayout_2">
               <property name="fieldGrowthPolicy">
                <enum>QFormLayout::ExpandingFieldsGrow</enum>
               </property>
+              <property name="horizontalSpacing">
+               <number>6</number>
+              </property>
               <item row="0" column="0">
                <widget class="QLabel" name="labelStartPoint">
                 <property name="text">
@@ -334,11 +340,31 @@
                </widget>
               </item>
               <item row="2" column="1">
-               <widget class="QComboBox" name="comboBoxIncludeType"/>
+               <widget class="QComboBox" name="comboBoxIncludeType">
+                <property name="sizePolicy">
+                 <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+                  <horstretch>0</horstretch>
+                  <verstretch>0</verstretch>
+                 </sizepolicy>
+                </property>
+               </widget>
               </item>
              </layout>
             </widget>
-            <widget class="QListWidget" name="listWidgetCustomSA"/>
+            <widget class="QListWidget" name="listWidgetCustomSA">
+             <property name="sizePolicy">
+              <sizepolicy hsizetype="Preferred" vsizetype="Expanding">
+               <horstretch>0</horstretch>
+               <verstretch>0</verstretch>
+              </sizepolicy>
+             </property>
+             <property name="sizeIncrement">
+              <size>
+               <width>0</width>
+               <height>0</height>
+              </size>
+             </property>
+            </widget>
            </widget>
           </item>
          </layout>