diff --git a/bananaSPLIT/UserInterface/titolo.ui b/bananaSPLIT/UserInterface/titolo.ui
index 2e4d0e9..79ed3e1 100644
--- a/bananaSPLIT/UserInterface/titolo.ui
+++ b/bananaSPLIT/UserInterface/titolo.ui
@@ -132,7 +132,11 @@
       </widget>
      </item>
      <item>
-      <widget class="QSpinBox" name="spn_ncarat"/>
+      <widget class="QSpinBox" name="spn_ncarat">
+       <property name="minimum">
+        <number>1</number>
+       </property>
+      </widget>
      </item>
     </layout>
    </widget>
@@ -320,7 +324,7 @@
      </rect>
     </property>
     <property name="text">
-     <string>/</string>
+     <string>\</string>
     </property>
    </widget>
    <widget class="QRadioButton" name="radioButton_5">