diff --git a/Source/Source.php b/Source/Source.php
index c2736df..e16a468 100644
--- a/Source/Source.php
+++ b/Source/Source.php
@@ -129,7 +129,7 @@
 				action		C(8)	NOTNULL DEFAULT \" '' \"
 				" ) ),
 			array( 'AddColumnSQL', array( plugin_table( 'changeset' ), "
-				parent		C(8)	NOTNULL DEFAULT \" '' \"
+				parent		C(250)	NOTNULL DEFAULT \" '' \"
 				" ) ),
 		);
 	}