diff --git a/src/main/java/io/ib67/sfcraft/SFCraft.java b/src/main/java/io/ib67/sfcraft/SFCraft.java
index 830a4de..5dc3d66 100644
--- a/src/main/java/io/ib67/sfcraft/SFCraft.java
+++ b/src/main/java/io/ib67/sfcraft/SFCraft.java
@@ -14,6 +14,7 @@ import java.nio.file.Path;
 import java.util.function.Supplier;
 
 public class SFCraft extends AbstractModule {
+    public static final String MOD_ID = "sfcraft";
     @Getter(AccessLevel.PUBLIC)
     static Injector injector;
     /**
@@ -27,7 +28,7 @@ public class SFCraft extends AbstractModule {
     @ConfigRoot
     @Singleton
     public static Path getRoot() {
-        return Path.of("sfcraft");
+        return Path.of(MOD_ID);
     }
 
     @Provides
diff --git a/src/main/java/io/ib67/sfcraft/SFEntityType.java b/src/main/java/io/ib67/sfcraft/SFEntityType.java
index d3c7b9d..c5cc97d 100644
--- a/src/main/java/io/ib67/sfcraft/SFEntityType.java
+++ b/src/main/java/io/ib67/sfcraft/SFEntityType.java
@@ -21,7 +21,7 @@ import java.util.concurrent.ConcurrentHashMap;
 public class SFEntityType {
     public static final EntityType<SFGuiderEntity> GUIDER = Registry.register(
             Registries.ENTITY_TYPE,
-            Identifier.of("sfcraft", "guider"),
+            Identifier.of(SFCraft.MOD_ID    , "guider"),
             EntityType.Builder.create(SFGuiderEntity::new, SpawnGroup.CREATURE)
                     .dimensions(0.35F, 0.6F)
                     .eyeHeight(0.36F)
diff --git a/src/main/java/io/ib67/sfcraft/mixin/server/subserver/WorldMixin.java b/src/main/java/io/ib67/sfcraft/mixin/server/subserver/WorldMixin.java
index 8291a0f..412d159 100644
--- a/src/main/java/io/ib67/sfcraft/mixin/server/subserver/WorldMixin.java
+++ b/src/main/java/io/ib67/sfcraft/mixin/server/subserver/WorldMixin.java
@@ -20,7 +20,7 @@ public abstract class WorldMixin {
 
     @Inject(method = "getGameRules", at = @At("HEAD"), cancellable = true)
     private void beforeGetGameRules(CallbackInfoReturnable<GameRules> cir) {
-        if (!isClient() && registryKey.getValue().getNamespace().equals("sfcraft")) {
+        if (!isClient() && registryKey.getValue().getNamespace().equals(SFCraft.MOD_ID)) {
             if (sfcraft$customGameRule == null) {
                 sfcraft$customGameRule = SFCraft.getInjector().getInstance(RoomModule.class).readGameRuleForRoom((ServerWorld) (Object) this);
             }
diff --git a/src/main/java/io/ib67/sfcraft/room/RoomTeleporter.java b/src/main/java/io/ib67/sfcraft/room/RoomTeleporter.java
index bd42baf..52df847 100644
--- a/src/main/java/io/ib67/sfcraft/room/RoomTeleporter.java
+++ b/src/main/java/io/ib67/sfcraft/room/RoomTeleporter.java
@@ -1,6 +1,7 @@
 package io.ib67.sfcraft.room;
 
 import com.google.inject.Inject;
+import io.ib67.sfcraft.SFCraft;
 import io.ib67.sfcraft.config.SFConfig;
 import io.ib67.sfcraft.inject.MinecraftServerSupplier;
 import io.ib67.sfcraft.module.RoomModule;
@@ -25,7 +26,7 @@ public class RoomTeleporter {
     @Inject
     private SFConfig config;
 
-    public static final Identifier ROOM_COOKIE = Identifier.of("sfcraft", "room");
+    public static final Identifier ROOM_COOKIE = Identifier.of(SFCraft.MOD_ID, "room");
 
     public void teleportTo(Room room, ServerPlayerEntity player) {
         if (roomModule.isVirtual(player.getUuid())) {
diff --git a/src/main/java/io/ib67/sfcraft/room/create/CreativeSpaceRoom.java b/src/main/java/io/ib67/sfcraft/room/create/CreativeSpaceRoom.java
index 6c09ab5..1fd0832 100644
--- a/src/main/java/io/ib67/sfcraft/room/create/CreativeSpaceRoom.java
+++ b/src/main/java/io/ib67/sfcraft/room/create/CreativeSpaceRoom.java
@@ -1,5 +1,6 @@
 package io.ib67.sfcraft.room.create;
 
+import io.ib67.sfcraft.SFCraft;
 import io.ib67.sfcraft.module.room.CreativeRoomModule;
 import io.ib67.sfcraft.subserver.Room;
 import io.ib67.sfcraft.subserver.RoomPlayerManager;
@@ -13,8 +14,8 @@ import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.World;
 
 public class CreativeSpaceRoom implements Room {
-    public static final RegistryKey<World> WORLD = RegistryKey.of(RegistryKeys.WORLD, Identifier.of("sfcraft", "playground"));
-    public static final Identifier IDENTIFIER = Identifier.of("sfcraft", "creative_space");
+    public static final RegistryKey<World> WORLD = RegistryKey.of(RegistryKeys.WORLD, Identifier.of(SFCraft.MOD_ID, "playground"));
+    public static final Identifier IDENTIFIER = Identifier.of(SFCraft.MOD_ID, "creative_space");
     public static final BlockPos SPAWN_POS = new BlockPos(0, 66, 0);
     @Getter
     private final RoomPlayerManager playerManager;
diff --git a/src/main/java/io/ib67/sfcraft/util/SFConsts.java b/src/main/java/io/ib67/sfcraft/util/SFConsts.java
index 678157e..2db8bec 100644
--- a/src/main/java/io/ib67/sfcraft/util/SFConsts.java
+++ b/src/main/java/io/ib67/sfcraft/util/SFConsts.java
@@ -1,5 +1,6 @@
 package io.ib67.sfcraft.util;
 
+import io.ib67.sfcraft.SFCraft;
 import io.ib67.sfcraft.util.Permission;
 import lombok.experimental.UtilityClass;
 import net.fabricmc.loader.api.FabricLoader;
@@ -8,7 +9,7 @@ import net.minecraft.server.network.ServerPlayerEntity;
 
 @UtilityClass
 public class SFConsts {
-    public static final String VERSION = FabricLoader.getInstance().getModContainer("sfcraft").get().getMetadata().getVersion().getFriendlyString();
+    public static final String VERSION = FabricLoader.getInstance().getModContainer(SFCraft.MOD_ID).get().getMetadata().getVersion().getFriendlyString();
     public static final String SPECIAL_SUDO = "sfcraft.special.state.sudo";
     public static final Permission<PlayerEntity> USE_AT = ofSFCPermission("chat.at", true);
     public static final Permission<PlayerEntity> USE_BROADCAST_LOCATION = ofSFCPermission("chat.xyz", true);