diff --git a/sources/Application/UI/Base/Component/DataTable/DataTableUIBlockFactory.php b/sources/Application/UI/Base/Component/DataTable/DataTableUIBlockFactory.php
index de8737d43..356ede615 100644
--- a/sources/Application/UI/Base/Component/DataTable/DataTableUIBlockFactory.php
+++ b/sources/Application/UI/Base/Component/DataTable/DataTableUIBlockFactory.php
@@ -549,7 +549,7 @@ class DataTableUIBlockFactory extends AbstractUIBlockFactory
 		// Pages length
 		$aOptions['iPageSize'] = 10;
 		if ($oCustomSettings->iDefaultPageSize > 0) {
-			$aOptions['iPageSize'] = $oCustomSettings->iDefaultPageSize;
+			$aOptions['iPageSize'] = (int)$oCustomSettings->iDefaultPageSize;
 		}
 
 		// Max height is only set if necessary, otherwise we want the list to occupy all the height it can depending on its pagination
diff --git a/templates/base/components/datatable/layout.ready.js.twig b/templates/base/components/datatable/layout.ready.js.twig
index ae2a6afbb..04bd5b3bb 100644
--- a/templates/base/components/datatable/layout.ready.js.twig
+++ b/templates/base/components/datatable/layout.ready.js.twig
@@ -419,7 +419,7 @@ var aOptions{{ sListIDForVarSuffix }} = {
     sSelectMode: "{{ oUIBlock.GetOption("select_mode") }}",
     sSelectedItemsName: "oSelectedItems{{ sListIDForVarSuffix }}",
     sViewLink: '{{ oUIBlock.GetOption("bViewLink") }}',
-    iPageSize: ' {{ iPageSize }}',
+    iPageSize: {{ iPageSize }},
     oClassAliases: JSON.parse('{{ oUIBlock.GetOption("oClassAliases") |raw }}'),
     sTableId: '{{ oUIBlock.GetOption("sTableId") }}',
     sRenderUrl: "{{ oUIBlock.GetAjaxUrl() }}",