diff --git a/unstack.sh b/unstack.sh
index bff01d1..b8b7f4a 100755
--- a/unstack.sh
+++ b/unstack.sh
@@ -55,6 +55,7 @@
 source $TOP_DIR/lib/infra
 source $TOP_DIR/lib/oslo
 source $TOP_DIR/lib/stackforge
+source $TOP_DIR/lib/lvm
 source $TOP_DIR/lib/horizon
 source $TOP_DIR/lib/keystone
 source $TOP_DIR/lib/glance
@@ -177,3 +178,5 @@
         screen -X -S $SESSION quit
     fi
 fi
+
+clean_lvm_volume_group $DEFAULT_VOLUME_GROUP_NAME