diff --git a/hosts/nullbox/mcserver.nix b/hosts/nullbox/mcserver.nix
index b434d64..d093f0c 100644
--- a/hosts/nullbox/mcserver.nix
+++ b/hosts/nullbox/mcserver.nix
@@ -23,12 +23,12 @@ in
         SUBVOLUME = "/srv/mcserver";
         TIMELINE_CREATE = true;
         TIMELINE_CLEANUP = true;
-        TIMELINE_MIN_AGE = 1800;
-        TIMELINE_LIMIT_HOURLY = 36;
-        TIMELINE_LIMIT_DAILY = 14;
-        TIMELINE_LIMIT_WEEKLY = 4;
-        TIMELINE_LIMIT_MONTHLY = 12;
-        TIMELINE_LIMIT_YEARLY = 10000;
+        TIMELINE_MIN_AGE = "1800";
+        TIMELINE_LIMIT_HOURLY = "36";
+        TIMELINE_LIMIT_DAILY = "14";
+        TIMELINE_LIMIT_WEEKLY = "4";
+        TIMELINE_LIMIT_MONTHLY = "12";
+        TIMELINE_LIMIT_YEARLY = "10000";
       };
     };