diff --git a/plugins/CoreAdminHome/tests/Fixture/DuplicateActions.php b/plugins/CoreAdminHome/tests/Fixture/DuplicateActions.php
index 899e432fca0..7d98a57670e 100644
--- a/plugins/CoreAdminHome/tests/Fixture/DuplicateActions.php
+++ b/plugins/CoreAdminHome/tests/Fixture/DuplicateActions.php
@@ -84,6 +84,7 @@ class DuplicateActions extends Fixture
                 'visitor_count_visits' => 1,
                 'visitor_returning' => 1,
                 'visitor_days_since_order' => 1,
+                'visitor_days_since_first' => 1,
                 'idaction_url' => 4,
             ),
 
@@ -99,6 +100,7 @@ class DuplicateActions extends Fixture
                 'visitor_count_visits' => 1,
                 'visitor_returning' => 1,
                 'visitor_days_since_order' => 1,
+                'visitor_days_since_first' => 1,
                 'idaction_url' => 7,
             )
         ),
diff --git a/plugins/CoreAdminHome/tests/Integration/Model/DuplicateActionRemoverTest.php b/plugins/CoreAdminHome/tests/Integration/Model/DuplicateActionRemoverTest.php
index 78a988d9086..a898ef1616b 100644
--- a/plugins/CoreAdminHome/tests/Integration/Model/DuplicateActionRemoverTest.php
+++ b/plugins/CoreAdminHome/tests/Integration/Model/DuplicateActionRemoverTest.php
@@ -82,7 +82,7 @@ public function test_getSitesAndDatesOfRowsUsingDuplicates_ReturnsTheServerTimeA
     {
         $row = array(
             'idsite' => 3,
-            'idvisitor' => DuplicateActions::DUMMY_IDVISITOR,
+            'idvisitor' => pack("H*", DuplicateActions::DUMMY_IDVISITOR),
             'server_time' => '2012-02-13 00:00:00',
             'idvisit' => 5,
             'idorder' => 6,