diff --git a/templates/backup.sh.j2 b/templates/backup.sh.j2
index e7c47e3..349f48f 100755
--- a/templates/backup.sh.j2
+++ b/templates/backup.sh.j2
@@ -28,7 +28,8 @@ borg create                         \
     --show-rc                       \
     --compression none              \
     --exclude-caches                \
-    --one-file-system		    \
+    --one-file-system		        \
+    --exclude "re:^/var/lib/docker/volumes/[a-z0-9]{64}/"   \
     ::'{hostname}-{now}'            \
     /var/lib/docker/volumes
 
@@ -47,7 +48,7 @@ borg prune                          \
     --show-rc                       \
     --keep-daily    7               \
     --keep-weekly   4               \
-    --keep-monthly  6               \
+    --keep-monthly  6
 
 prune_exit=$?