diff --git a/modules/services/kiwix-serve.nix b/modules/services/kiwix-serve.nix
index 936002579..35a1e2d70 100644
--- a/modules/services/kiwix-serve.nix
+++ b/modules/services/kiwix-serve.nix
@@ -58,7 +58,7 @@ in
       serviceConfig.ProtectProc = "invisible";
       serviceConfig.ProtectSystem = "strict";
       serviceConfig.RemoveIPC = true;
-      serviceConfig.ReadPaths = cfg.zimPaths;
+      serviceConfig.ReadOnlyPaths = cfg.zimPaths;
       serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
       serviceConfig.RestrictNamespaces = true;
       serviceConfig.RestrictSUIDSGID = true;