diff --git a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/block/BukkitBlockManager.java b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/block/BukkitBlockManager.java
index d19079d0c..a82a0dc65 100644
--- a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/block/BukkitBlockManager.java
+++ b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/block/BukkitBlockManager.java
@@ -248,7 +248,7 @@ public class BukkitBlockManager extends AbstractBlockManager {
         int vanillaStateCount;
         if (plugin.hasMod()) {
             try {
-                Class<?> modClass = ReflectionUtils.getClazz("net.momirealms.craftengine.mod.CraftEnginePlugin");
+                Class<?> modClass = ReflectionUtils.getClazz(CraftEngine.MOD_CLASS);
                 Field amountField = ReflectionUtils.getDeclaredField(modClass, "vanillaRegistrySize");
                 vanillaStateCount = (int) amountField.get(null);
             } catch (Exception e) {
diff --git a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/BukkitCraftEngine.java b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/BukkitCraftEngine.java
index f180504a6..ee976e3a7 100644
--- a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/BukkitCraftEngine.java
+++ b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/BukkitCraftEngine.java
@@ -56,7 +56,7 @@ public class BukkitCraftEngine extends CraftEngine {
         super.classPathAppender = new ReflectionClassPathAppender(this);
         super.scheduler = new BukkitSchedulerAdapter(this);
         super.logger = new JavaPluginLogger(bootstrap.getLogger());
-        Class<?> modClass = ReflectionUtils.getClazz("net.momirealms.craftengine.mod.CraftEnginePlugin");
+        Class<?> modClass = ReflectionUtils.getClazz(MOD_CLASS);
         if (modClass != null) {
             Field isSuccessfullyRegistered = ReflectionUtils.getDeclaredField(modClass, "isSuccessfullyRegistered");
             try {
diff --git a/core/src/main/java/net/momirealms/craftengine/core/plugin/CraftEngine.java b/core/src/main/java/net/momirealms/craftengine/core/plugin/CraftEngine.java
index 856070fc5..9344d6257 100644
--- a/core/src/main/java/net/momirealms/craftengine/core/plugin/CraftEngine.java
+++ b/core/src/main/java/net/momirealms/craftengine/core/plugin/CraftEngine.java
@@ -31,6 +31,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 public abstract class CraftEngine implements Plugin {
+    public static final String MOD_CLASS = "net.momirealms.craftengine.mod.CraftEnginePlugin";
     public static final String NAMESPACE = "craftengine";
     private static CraftEngine instance;
     protected DependencyManager dependencyManager;
diff --git a/core/src/main/java/net/momirealms/craftengine/core/plugin/config/ConfigManager.java b/core/src/main/java/net/momirealms/craftengine/core/plugin/config/ConfigManager.java
index 3bfb15575..ea4b5e507 100644
--- a/core/src/main/java/net/momirealms/craftengine/core/plugin/config/ConfigManager.java
+++ b/core/src/main/java/net/momirealms/craftengine/core/plugin/config/ConfigManager.java
@@ -125,7 +125,7 @@ public class ConfigManager implements Reloadable {
         // recipe
         enableRecipeSystem = config.getBoolean("recipe.enable", true);
 
-        Class<?> modClazz = ReflectionUtils.getClazz("net.momirealms.craftengine.mod.CraftEnginePlugin");
+        Class<?> modClazz = ReflectionUtils.getClazz(CraftEngine.MOD_CLASS);
         if (modClazz != null) {
             Method setMaxChainMethod = ReflectionUtils.getStaticMethod(modClazz, new String[] {"setMaxChainUpdate"}, void.class, int.class);
             try {