diff --git a/lib/Elastica/Facet/DateHistogram.php b/lib/Elastica/Facet/DateHistogram.php
index 696d2d20ba..97089b183f 100644
--- a/lib/Elastica/Facet/DateHistogram.php
+++ b/lib/Elastica/Facet/DateHistogram.php
@@ -24,6 +24,17 @@ public function setTimezone($tzOffset)
         return $this->setParam('time_zone', $tzOffset);
     }
 
+    /**
+     * Set the factor parameter
+     *
+     * @param  integer $factor
+     * @return $this
+     */
+    public function setFactor($factor)
+    {
+        return $this->setParam('factor', $factor);
+    }
+
     /**
      * Creates the full facet definition, which includes the basic
      * facet definition of the parent.
diff --git a/test/lib/Elastica/Test/Facet/DateHistogramTest.php b/test/lib/Elastica/Test/Facet/DateHistogramTest.php
index e65db9dd85..ed60a469aa 100644
--- a/test/lib/Elastica/Test/Facet/DateHistogramTest.php
+++ b/test/lib/Elastica/Test/Facet/DateHistogramTest.php
@@ -19,7 +19,7 @@ public function testClassHierarchy()
         unset($facet);
     }
 
-    public function testTest()
+    public function testQuery()
     {
         $client = $this->_getClient();
         $index = $client->getIndex('test');
@@ -56,4 +56,43 @@ public function testTest()
         $this->assertEquals(4, $response->getTotalHits());
         $this->assertEquals(2, count($facets['dateHist1']['entries']));
     }
+
+    public function testFactor()
+    {
+        $client = $this->_getClient();
+        $index = $client->getIndex('test');
+        $index->create(array(), true);
+        $type = $index->getType('helloworld');
+
+        $mapping = new Mapping($type, array(
+                'name' => array('type' => 'string', 'store' => 'no'),
+                'dtmPosted' => array('type' => 'long', 'store' => 'no'),
+            ));
+        $type->setMapping($mapping);
+
+        $doc = new Document(1, array('name' => 'nicolas ruflin', 'dtmPosted' => 1308865980));
+        $type->addDocument($doc);
+        $doc = new Document(2, array('name' => 'raul martinez jr', 'dtmPosted' => 1308822780));
+        $type->addDocument($doc);
+        $doc = new Document(3, array('name' => 'rachelle clemente', 'dtmPosted' => 1310115180));
+        $type->addDocument($doc);
+        $doc = new Document(4, array('name' => 'elastica search', 'dtmPosted' => 1310089980));
+        $type->addDocument($doc);
+
+        $facet = new DateHistogram('dateHist1');
+        $facet->setInterval("day");
+        $facet->setField("dtmPosted");
+        $facet->setFactor(1000);
+
+        $query = new Query();
+        $query->addFacet($facet);
+        $query->setQuery(new MatchAll());
+        $index->refresh();
+
+        $response = $type->search($query);
+        $facets = $response->getFacets();
+
+        $this->assertEquals(4, $response->getTotalHits());
+        $this->assertEquals(2, count($facets['dateHist1']['entries']));
+    }
 }