diff --git a/lib/lvm b/lib/lvm
index d35a76f..99c7ba9 100644
--- a/lib/lvm
+++ b/lib/lvm
@@ -23,11 +23,7 @@
 # Defaults
 # --------
 # Name of the lvm volume groups to use/create for iscsi volumes
-# This monkey-motion is for compatibility with icehouse-generation Grenade
-# If ``VOLUME_GROUP`` is set, use it, otherwise we'll build a VG name based
-# on ``VOLUME_GROUP_NAME`` that includes the backend name
-# Grenade doesn't use ``VOLUME_GROUP2`` so it is left out
-VOLUME_GROUP_NAME=${VOLUME_GROUP:-${VOLUME_GROUP_NAME:-stack-volumes}}
+VOLUME_GROUP_NAME=${VOLUME_GROUP_NAME:-stack-volumes}
 DEFAULT_VOLUME_GROUP_NAME=$VOLUME_GROUP_NAME-default
 
 # Backing file name is of the form $VOLUME_GROUP$BACKING_FILE_SUFFIX