diff --git a/src/main/java/com/nomiceu/nomilabs/mixin/vanilla/DedicatedServerMixin.java b/src/main/java/com/nomiceu/nomilabs/mixin/vanilla/DedicatedServerMixin.java
index 0c8da12..c420e0e 100644
--- a/src/main/java/com/nomiceu/nomilabs/mixin/vanilla/DedicatedServerMixin.java
+++ b/src/main/java/com/nomiceu/nomilabs/mixin/vanilla/DedicatedServerMixin.java
@@ -90,6 +90,8 @@ public void changeInitDifficulty(CallbackInfoReturnable<EnumDifficulty> cir) {
 
             NomiLabs.LOGGER.warn("-----------------------------------------------");
             NomiLabs.LOGGER.warn("===============================================");
+            settings.setProperty("difficulty", locked.getId());
+            settings.saveProperties();
         }
     }