diff --git a/src/gui/pricedialog.ui b/src/gui/pricedialog.ui
index 95d9dbd..f35c6f0 100644
--- a/src/gui/pricedialog.ui
+++ b/src/gui/pricedialog.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>171</width>
-    <height>71</height>
+    <width>201</width>
+    <height>127</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -28,6 +28,9 @@
      </item>
      <item row="0" column="1">
       <widget class="QDoubleSpinBox" name="priceSpinBox">
+       <property name="minimum">
+        <double>-999.990000000000009</double>
+       </property>
        <property name="maximum">
         <double>999.990000000000009</double>
        </property>