diff --git a/src/fgt/edit_quality/qualitymapperdialog.ui b/src/fgt/edit_quality/qualitymapperdialog.ui
index b6becfad7..f1691baab 100644
--- a/src/fgt/edit_quality/qualitymapperdialog.ui
+++ b/src/fgt/edit_quality/qualitymapperdialog.ui
@@ -436,9 +436,6 @@
        <property name="text" >
         <string>Preview</string>
        </property>
-       <property name="checkable" >
-        <bool>true</bool>
-       </property>
       </widget>
      </item>
      <item>