diff --git a/modules/install/schemas/sequence.xml b/modules/install/schemas/sequence.xml
index 91146b1b1..df186d74f 100644
--- a/modules/install/schemas/sequence.xml
+++ b/modules/install/schemas/sequence.xml
@@ -1,3 +1,3 @@
 <table name="sequence">
-  <column name="seq" type="bignumber" notnull="notnull" primary_key="primary_key" auto_increment="auto_increment" />
+  <column name="seq" type="bignumber" notnull="notnull" size="64" primary_key="primary_key" auto_increment="auto_increment" />
 </table>