diff --git a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/DB2Dictionary.java b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/DB2Dictionary.java
index 5762523ef..f49cd42fc 100644
--- a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/DB2Dictionary.java
+++ b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/DB2Dictionary.java
@@ -279,6 +279,10 @@ public class DB2Dictionary
             break;
         case db2ISeriesV5R3OrEarlier:
         case db2ISeriesV5R4OrLater:
+            lastGeneratedKeyQuery = "SELECT IDENTITY_VAL_LOCAL() FROM "
+                + "SYSIBM.SYSDUMMY1";
+            nextSequenceQuery = "SELECT NEXTVAL FOR {0} FROM "
+                + "SYSIBM.SYSDUMMY1";
             validationSQL = "SELECT DISTINCT(CURRENT TIMESTAMP) FROM "
                 + "QSYS2.SYSTABLES";
             sequenceSQL = "SELECT SEQUENCE_SCHEMA, "