diff --git a/code/GridFieldOrderableRows.php b/code/GridFieldOrderableRows.php
index dd3cb2c..238b7f0 100755
--- a/code/GridFieldOrderableRows.php
+++ b/code/GridFieldOrderableRows.php
@@ -180,7 +180,7 @@ class GridFieldOrderableRows extends RequestHandler implements
 		$classes = ClassInfo::dataClassesFor($list->dataClass());
 
 		foreach($classes as $class) {
-			if(singleton($class)->hasOwnTableDatabaseField($field)) {
+			if(singleton($class)->hasDataBaseField($field)) {
 				return $class;
 			}
 		}
diff --git a/templates/SilverStripe/Forms/GridField/GridFieldOrderableRowsDragHandle.ss b/templates/GridFieldOrderableRowsDragHandle.ss
similarity index 100%
rename from templates/SilverStripe/Forms/GridField/GridFieldOrderableRowsDragHandle.ss
rename to templates/GridFieldOrderableRowsDragHandle.ss