diff --git a/symmetric/src/main/resources/dialects/derby.xml b/symmetric/src/main/resources/dialects/derby.xml
index e4b0668598..da150f7b38 100644
--- a/symmetric/src/main/resources/dialects/derby.xml
+++ b/symmetric/src/main/resources/dialects/derby.xml
@@ -48,7 +48,7 @@
                 </property>
                 <property name="numberColumnTemplate">
                     <value>
-                        <![CDATA[case when $(tableAlias).$(columnName) is null then '' else char($(tableAlias).$(columnName)) end ||','||]]>
+                        <![CDATA[case when $(tableAlias).$(columnName) is null then '' else rtrim(char($(tableAlias).$(columnName))) end ||','||]]>
                     </value>
                 </property>
                 <property name="triggerConcatCharacter" value="||"/>