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 19bdb9a1..089fb114 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
@@ -34,7 +34,7 @@ import java.util.Objects;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
-public class ClassLoaderRemapper extends JarRemapper {
+public class ClassLoaderRemapper extends LenientJarRemapper {
 
     private static final Logger LOGGER = LogManager.getLogger("Arclight");
     private static final String PREFIX = "net/minecraft/";
@@ -51,7 +51,7 @@ public class ClassLoaderRemapper extends JarRemapper {
         this.jarMapping.setInheritanceMap(ArclightRemapper.INSTANCE.inheritanceMap);
         this.jarMapping.setFallbackInheritanceProvider(GlobalClassRepo.inheritanceProvider());
         this.toBukkitMapping.setFallbackInheritanceProvider(GlobalClassRepo.inheritanceProvider());
-        this.toBukkitRemapper = new JarRemapper(this.toBukkitMapping);
+        this.toBukkitRemapper = new LenientJarRemapper(this.toBukkitMapping);
         this.generatedHandler = generateReflectionHandler();
         GlobalClassRepo.INSTANCE.addRepo(new ClassLoaderRepo(this.classLoader));
     }
diff --git a/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/LenientJarRemapper.java b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/LenientJarRemapper.java
new file mode 100644
index 00000000..82c2f7f8
--- /dev/null
+++ b/arclight-common/src/main/java/io/izzel/arclight/common/mod/util/remapper/LenientJarRemapper.java
@@ -0,0 +1,20 @@
+package io.izzel.arclight.common.mod.util.remapper;
+
+import net.md_5.specialsource.JarMapping;
+import net.md_5.specialsource.JarRemapper;
+
+public class LenientJarRemapper extends JarRemapper {
+
+    public LenientJarRemapper(JarMapping jarMapping) {
+        super(jarMapping);
+    }
+
+    @Override
+    public String mapSignature(String signature, boolean typeSignature) {
+        try {
+            return super.mapSignature(signature, typeSignature);
+        } catch (Exception e) {
+            return signature;
+        }
+    }
+}