diff --git a/python/plugins/GdalTools/tools/doPolygonize.py b/python/plugins/GdalTools/tools/doPolygonize.py
index fcbfd60bd82..9d7a4150a88 100644
--- a/python/plugins/GdalTools/tools/doPolygonize.py
+++ b/python/plugins/GdalTools/tools/doPolygonize.py
@@ -25,15 +25,18 @@ class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
         [
           (self.inSelector, SIGNAL("filenameChanged()")),
           (self.outSelector, SIGNAL("filenameChanged()")),
+          (self.maskSelector, SIGNAL("filenameChanged()"), self.maskCheck),
           (self.fieldEdit, SIGNAL("textChanged(const QString &)"), self.fieldCheck)
         ]
       )
 
       self.connect(self.inSelector, SIGNAL("selectClicked()"), self.fillInputFileEdit)
       self.connect(self.outSelector, SIGNAL("selectClicked()"), self.fillOutputFileEdit)
+      self.connect(self.maskSelector, SIGNAL("selectClicked()"), self.fillMaskFileEdit)
 
   def onLayersChanged(self):
       self.inSelector.setLayers( Utils.LayerRegistry.instance().getRasterLayers() )
+      self.maskSelector.setLayers( Utils.LayerRegistry.instance().getRasterLayers() )
 
   def fillInputFileEdit(self):
       lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
@@ -55,10 +58,23 @@ class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
       self.outSelector.setFilename(outputFile)
       self.lastEncoding = encoding
 
+  def fillMaskFileEdit(self):
+      lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
+      maskFile = Utils.FileDialog.getOpenFileName(self, self.tr( "Select the input file for Polygonize" ), Utils.FileFilter.allRastersFilter(), lastUsedFilter )
+      if maskFile.isEmpty():
+        return
+      Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
+
+      self.maskSelector.setFilename(maskFile)
+
   def getArguments(self):
       arguments = QStringList()
       arguments << self.getInputFileName()
       outputFn = self.getOutputFileName()
+      maskFn = self.getMaskFileName()
+      if self.maskCheck.isChecked() and not maskFn.isEmpty():
+        arguments << "-mask"
+        arguments << maskFn
       if not outputFn.isEmpty():
         arguments << "-f"
         arguments << self.outputFormat
@@ -74,6 +90,9 @@ class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
 
   def getInputFileName(self):
       return self.inSelector.filename()
+  
+  def getMaskFileName(self):
+      return self.maskSelector.filename()
 
   def addLayerIntoCanvas(self, fileInfo):
       vl = self.iface.addVectorLayer(fileInfo.filePath(), fileInfo.baseName(), "ogr")
diff --git a/python/plugins/GdalTools/tools/widgetPolygonize.ui b/python/plugins/GdalTools/tools/widgetPolygonize.ui
index 6bab002bb00..93e5cfc5c3f 100644
--- a/python/plugins/GdalTools/tools/widgetPolygonize.ui
+++ b/python/plugins/GdalTools/tools/widgetPolygonize.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>449</width>
-    <height>94</height>
+    <width>446</width>
+    <height>121</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -19,50 +19,56 @@
   <property name="windowTitle">
    <string>Polygonize (Raster to vector)</string>
   </property>
-  <layout class="QVBoxLayout" name="verticalLayout">
-   <item>
-    <layout class="QGridLayout" name="gridLayout">
-     <item row="0" column="0">
-      <widget class="QLabel" name="label">
-       <property name="text">
-        <string>&amp;Input file (raster)</string>
-       </property>
-       <property name="buddy">
-        <cstring>inSelector</cstring>
-       </property>
-      </widget>
-     </item>
-     <item row="1" column="0">
-      <widget class="QLabel" name="label_2">
-       <property name="text">
-        <string>&amp;Output file for polygons (shapefile)</string>
-       </property>
-       <property name="buddy">
-        <cstring>outSelector</cstring>
-       </property>
-      </widget>
-     </item>
-     <item row="2" column="0">
-      <widget class="QCheckBox" name="fieldCheck">
-       <property name="text">
-        <string>&amp;Field name</string>
-       </property>
-      </widget>
-     </item>
-     <item row="2" column="1">
-      <widget class="QLineEdit" name="fieldEdit">
-       <property name="text">
-        <string>DN</string>
-       </property>
-      </widget>
-     </item>
-     <item row="0" column="1">
-      <widget class="GdalToolsInOutSelector" name="inSelector" native="true"/>
-     </item>
-     <item row="1" column="1">
-      <widget class="GdalToolsInOutSelector" name="outSelector" native="true"/>
-     </item>
-    </layout>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>&amp;Input file (raster)</string>
+     </property>
+     <property name="buddy">
+      <cstring>inSelector</cstring>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="1">
+    <widget class="GdalToolsInOutSelector" name="inSelector" native="true"/>
+   </item>
+   <item row="1" column="0">
+    <widget class="QLabel" name="label_2">
+     <property name="text">
+      <string>&amp;Output file for polygons (shapefile)</string>
+     </property>
+     <property name="buddy">
+      <cstring>outSelector</cstring>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="GdalToolsInOutSelector" name="outSelector" native="true"/>
+   </item>
+   <item row="2" column="0">
+    <widget class="QCheckBox" name="fieldCheck">
+     <property name="text">
+      <string>&amp;Field name</string>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="1">
+    <widget class="QLineEdit" name="fieldEdit">
+     <property name="text">
+      <string>DN</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0">
+    <widget class="QCheckBox" name="maskCheck">
+     <property name="text">
+      <string>Use mask</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="1">
+    <widget class="GdalToolsInOutSelector" name="maskSelector" native="true"/>
    </item>
   </layout>
  </widget>