diff --git a/Classes/Backend/BackendLayoutDataProvider.php b/Classes/Backend/BackendLayoutDataProvider.php
index 1be365ec..c853302f 100644
--- a/Classes/Backend/BackendLayoutDataProvider.php
+++ b/Classes/Backend/BackendLayoutDataProvider.php
@@ -190,7 +190,7 @@ protected function getBackendLayoutConfiguration($pageUid) {
 				}
 				$columns[$key] = array(
 					'name' => $columnName,
-					'colPos' => $column['colPos'] >= 0 ? $column['colPos'] : $config['colCount']
+					'colPos' => $column['colPos'] >= 0 ? $column['colPos'] : NULL
 				);
 				if ($column['colspan']) {
 					$columns[$key]['colspan'] = $column['colspan'];