diff --git a/davmail.sh b/davmail.sh
index 46c7424d..bcf5b320 100644
--- a/davmail.sh
+++ b/davmail.sh
@@ -2,4 +2,5 @@
 # install java :
 # sudo apt-get install sun-java6-bin
 # launch davmail :
-java -cp davmail.jar:lib/* davmail.DavGateway
+for i in lib/*; do export CLASSPATH=$CLASSPATH:$i; done
+java -cp davmail.jar:$CLASSPATH davmail.DavGateway