diff --git a/modules/services/calibre-web/default.nix b/modules/services/calibre-web/default.nix
index 858851c..b6e70d8 100644
--- a/modules/services/calibre-web/default.nix
+++ b/modules/services/calibre-web/default.nix
@@ -54,6 +54,11 @@ in
       ];
     };
 
+    my.system.persist.directories = [
+      "/var/lib/${config.services.calibre-web.dataDir}"
+      cfg.libraryPath
+    ];
+
     services.fail2ban.jails = {
       calibre-web = ''
         enabled = true