diff --git a/bin/backup b/bin/backup
index 620062e..099fa21 100755
--- a/bin/backup
+++ b/bin/backup
@@ -1,14 +1,7 @@
 #!/bin/bash -e
 
-if [ -e /Volumes ]; then
-  SHACHECK="2688057d3ddc1b9b5a5a4309f89a2bcb57cc033b  /Volumes/Duplicity/mountcheck"
-  if ! ( echo "${SHACHECK}" | shasum -cs ); then
-    echo "/Volumes/Duplicity does not seem to be mounted or wrong volume"
-    exit 1
-  fi
-fi
-
 CMD=${1:-backup}
+HOSTNAME=$(hostname -s)
 
-exec vault2env /secret/private/duplicity/$(hostname -s) -- \
-  duplicity-backup ${CMD}
+exec vault2env /secret/private/duplicity/${HOSTNAME} -- \
+  duplicity-backup -f ${HOME}/.duplicity/${HOSTNAME}.yaml ${CMD}