diff --git a/packaging/centos63/cloud.spec b/packaging/centos63/cloud.spec
index 1cde336e7b1..13cd8aae62d 100644
--- a/packaging/centos63/cloud.spec
+++ b/packaging/centos63/cloud.spec
@@ -166,9 +166,11 @@ echo PACKAGE=%{name} >> build/replace.properties
 
 if [ "%{_ossnoss}" == "NONOSS" -o "%{_ossnoss}" == "nonoss" ] ; then
     echo "Executing mvn packaging for NONOSS ..."
+   mvn clean
    mvn -Pawsapi,systemvm -Dnonoss package
 else
     echo "Executing mvn packaging for OSS ..."
+   mvn clean
    mvn -Pawsapi package -Dsystemvm
 fi