diff --git a/files/install/installCCS.sh b/files/install/installCCS.sh
index 1a6cc32..20ca537 100755
--- a/files/install/installCCS.sh
+++ b/files/install/installCCS.sh
@@ -11,7 +11,7 @@ ENVIRONMENT=$2
 NODE_NAME=$3
 
 BASEDIR=$(dirname "$0")
-DEV_PACKAGE_DIR="/home/ccs/dev-package-lists"
+DEV_PACKAGE_DIR="/home/ccs/dev-package-lists-"$(date +%Y%m%d)
 RELEASE_INSTALL_SCRIPT="/lsst/ccsadm/release/bin/install.py"
 CCS_INSTALL_DIR="/lsst/ccs/"$(date +%Y%m%d)
 
@@ -64,6 +64,9 @@ then
 
     $RELEASE_INSTALL_SCRIPT --ccs_inst_dir "$CCS_INSTALL_DIR" "$DEV_PACKAGE_DIR/$ENVIRONMENT/$NODE_NAME/ccsApplications.txt"
 
+    # Cleanup any existing dev-package-lists installation
+    rm -rf $DEV_PACKAGE_DIR
+        
 else
     echo "$VERIFY_USER"
 fi