diff --git a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ArclightRemapper.java b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ArclightRemapper.java
index 482924ab..36920b1b 100644
--- a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ArclightRemapper.java
+++ b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ArclightRemapper.java
@@ -52,6 +52,7 @@ public class ArclightRemapper {
     public final InheritanceMap inheritanceMap;
     private final List<PluginTransformer> transformerList = new ArrayList<>();
     private final JarRemapper toBukkitRemapper;
+    private final JarRemapper toNmsRemapper;
 
     public ArclightRemapper() throws Exception {
         this.toNmsMapping = new JarMapping();
@@ -80,6 +81,7 @@ public class ArclightRemapper {
         ArclightPluginPatcher.load(this.transformerList);
         toBukkitMapping.setFallbackInheritanceProvider(GlobalClassRepo.inheritanceProvider());
         this.toBukkitRemapper = new LenientJarRemapper(toBukkitMapping);
+        this.toNmsRemapper = new LenientJarRemapper(toNmsMapping);
         RemapSourceHandler.register();
     }
 
@@ -91,6 +93,10 @@ public class ArclightRemapper {
         return INSTANCE.toBukkitRemapper;
     }
 
+    public static JarRemapper getNmsMapper() {
+        return INSTANCE.toNmsRemapper;
+    }
+
     public List<PluginTransformer> getTransformerList() {
         return transformerList;
     }
diff --git a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ClassLoaderRemapper.java b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ClassLoaderRemapper.java
index 65b3d874..016115c4 100644
--- a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ClassLoaderRemapper.java
+++ b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ClassLoaderRemapper.java
@@ -347,11 +347,11 @@ public class ClassLoaderRemapper extends LenientJarRemapper {
 
         @Override
         protected String getCommonSuperClass(String type1, String type2) {
-            Collection<String> parents = GlobalClassRepo.inheritanceProvider().getAll(type2);
+            Collection<String> parents = GlobalClassRepo.remappingProvider().getAll(type2);
             if (parents.contains(type1)) {
                 return type1;
             }
-            if (GlobalClassRepo.inheritanceProvider().getAll(type1).contains(type2)) {
+            if (GlobalClassRepo.remappingProvider().getAll(type1).contains(type2)) {
                 return type2;
             }
             do {
@@ -366,7 +366,7 @@ public class ClassLoaderRemapper extends LenientJarRemapper {
                 LOGGER.warn("Failed to find class {}", typeName);
                 return "java/lang/Object";
             }
-            return node.superName;
+            return ArclightRemapper.getNmsMapper().map(node.superName);
         }
 
     }
diff --git a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ClassLoaderRepo.java b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ClassLoaderRepo.java
index a9eb7eab..2a434fef 100644
--- a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ClassLoaderRepo.java
+++ b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/ClassLoaderRepo.java
@@ -2,9 +2,6 @@ package io.izzel.arclight.common.mod.util.remapper;
 
 import net.md_5.specialsource.repo.ClassRepo;
 import org.objectweb.asm.ClassReader;
-import org.objectweb.asm.ClassVisitor;
-import org.objectweb.asm.commons.ClassRemapper;
-import org.objectweb.asm.commons.Remapper;
 import org.objectweb.asm.tree.ClassNode;
 
 import java.io.IOException;
@@ -32,18 +29,7 @@ public class ClassLoaderRepo implements ClassRepo {
             try (InputStream inputStream = connection.getInputStream()) {
                 ClassReader reader = new ClassReader(inputStream);
                 ClassNode classNode = new ClassNode();
-                ClassVisitor cv;
-                if (classLoader instanceof RemappingClassLoader) {
-                    cv = new ClassRemapper(classNode, new Remapper() {
-                        @Override
-                        public String map(String internalName) {
-                            return ((RemappingClassLoader) classLoader).getRemapper().map(internalName);
-                        }
-                    });
-                } else {
-                    cv = classNode;
-                }
-                reader.accept(cv, ClassReader.SKIP_CODE);
+                reader.accept(classNode, ClassReader.SKIP_CODE);
                 return classNode;
             }
         } catch (IOException ignored) {
diff --git a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/GlobalClassRepo.java b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/GlobalClassRepo.java
index b924faf6..e215bccd 100644
--- a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/GlobalClassRepo.java
+++ b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/GlobalClassRepo.java
@@ -17,6 +17,7 @@ public class GlobalClassRepo implements ClassRepo {
 
     public static final GlobalClassRepo INSTANCE = new GlobalClassRepo();
     private static final PluginInheritanceProvider PROVIDER = new PluginInheritanceProvider(INSTANCE);
+    private static final PluginInheritanceProvider REMAPPING = new PluginInheritanceProvider.Remapping(INSTANCE, PROVIDER);
 
     private final LoadingCache<String, ClassNode> cache = CacheBuilder.newBuilder().maximumSize(256)
         .expireAfterAccess(1, TimeUnit.MINUTES).build(CacheLoader.from(this::findParallel));
@@ -61,4 +62,8 @@ public class GlobalClassRepo implements ClassRepo {
     public static PluginInheritanceProvider inheritanceProvider() {
         return PROVIDER;
     }
+
+    public static PluginInheritanceProvider remappingProvider() {
+        return REMAPPING;
+    }
 }
diff --git a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/PluginInheritanceProvider.java b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/PluginInheritanceProvider.java
index a422f66b..ea359434 100644
--- a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/PluginInheritanceProvider.java
+++ b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/PluginInheritanceProvider.java
@@ -10,6 +10,7 @@ import java.util.Collections;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.stream.Collectors;
 
 public class PluginInheritanceProvider implements InheritanceProvider {
 
@@ -52,4 +53,24 @@ public class PluginInheritanceProvider implements InheritanceProvider {
         SHARED_INHERITANCE_MAP.put(className, parents);
         return parents;
     }
+
+    static class Remapping extends PluginInheritanceProvider {
+
+        private final PluginInheritanceProvider provider;
+
+        public Remapping(ClassRepo classRepo, PluginInheritanceProvider provider) {
+            super(classRepo);
+            this.provider = provider;
+        }
+
+        @Override
+        public Collection<String> getAll(String className) {
+            return provider.getAll(className).stream().map(ArclightRemapper.getNmsMapper()::map).collect(Collectors.toSet());
+        }
+
+        @Override
+        public Collection<String> getParents(String className) {
+            return provider.getParents(className).stream().map(ArclightRemapper.getNmsMapper()::map).collect(Collectors.toSet());
+        }
+    }
 }