diff --git a/plugins/samplesource/perseus/perseusgui.ui b/plugins/samplesource/perseus/perseusgui.ui
index 3ef1589f7..e823c3509 100644
--- a/plugins/samplesource/perseus/perseusgui.ui
+++ b/plugins/samplesource/perseus/perseusgui.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>324</width>
-    <height>256</height>
+    <height>132</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -422,11 +422,17 @@
       </widget>
      </item>
      <item>
-      <widget class="Line" name="line">
+      <spacer name="horizontalSpacer">
        <property name="orientation">
-        <enum>Qt::Vertical</enum>
+        <enum>Qt::Horizontal</enum>
        </property>
-      </widget>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
      </item>
      <item>
       <widget class="QLabel" name="adcLabel">
@@ -441,7 +447,7 @@
         <string>ADC dithering</string>
        </property>
        <property name="text">
-        <string>DIT</string>
+        <string>Dither</string>
        </property>
        <property name="checkable">
         <bool>true</bool>
@@ -454,31 +460,32 @@
         <string>ADC preamplifier</string>
        </property>
        <property name="text">
-        <string>PRE</string>
+        <string>Preamp</string>
        </property>
        <property name="checkable">
         <bool>true</bool>
        </property>
       </widget>
      </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="paddingLayout">
      <item>
-      <spacer name="horizontalSpacer">
+      <spacer name="verticalSpacer">
        <property name="orientation">
-        <enum>Qt::Horizontal</enum>
+        <enum>Qt::Vertical</enum>
        </property>
        <property name="sizeHint" stdset="0">
         <size>
-         <width>40</width>
-         <height>20</height>
+         <width>20</width>
+         <height>40</height>
         </size>
        </property>
       </spacer>
      </item>
     </layout>
    </item>
-   <item>
-    <layout class="QHBoxLayout" name="paddingLayout"/>
-   </item>
   </layout>
  </widget>
  <customwidgets>