diff --git a/art b/art
index b4c6a1eca3966872fc6532f6dc53d83c9e9dcab8..9493b828089a5ac64c23012854e3a248cc30c0ad 100644
--- a/art
+++ b/art
@@ -38,7 +38,7 @@ CLASSPATH=$CLASSPATH:$ARTEMIS_HOME/lib/ibatis/ibatis-2.3.4.726.jar:$ARTEMIS_HOME
 export CLASSPATH
 
 # picard jars
-CLASSPATH=$CLASSPATH:$ARTEMIS_HOME/lib/picard/sam.jar:$ARTEMIS_HOME/lib/picard/picard.jar:$ARTEMIS_HOME/lib/commons-net-2.2.jar
+CLASSPATH=$ARTEMIS_HOME/lib/picard/sam.jar:$ARTEMIS_HOME/lib/picard/picard.jar:$ARTEMIS_HOME/lib/commons-net-2.2.jar:$CLASSPATH
 export CLASSPATH