Index: src/main/resources/xwiki.oracle.hbm.xml
===================================================================
--- src/main/resources/xwiki.oracle.hbm.xml	(revision 10124)
+++ src/main/resources/xwiki.oracle.hbm.xml	(working copy)
@@ -596,7 +596,7 @@
         </property>
 
         <property name="referer" type="string">
-            <column name="XWR_REFERER" not-null="true" length="8192"/>
+            <column name="XWR_REFERER" not-null="true" length="8192" sql-type="clob"/>
         </property>
 
         <property name="pageViews" type="integer">