diff --git a/unstack.sh b/unstack.sh
index 30981fd..ed7e617 100755
--- a/unstack.sh
+++ b/unstack.sh
@@ -192,3 +192,4 @@
 
 # BUG: maybe it doesn't exist? We should isolate this further down.
 clean_lvm_volume_group $DEFAULT_VOLUME_GROUP_NAME || /bin/true
+clean_lvm_filter