diff --git a/src/Multicaster/InMemory/DynamicInMemoryProxyFactory.cs b/src/Multicaster/InMemory/DynamicInMemoryProxyFactory.cs
index 755c1d3..bb44289 100644
--- a/src/Multicaster/InMemory/DynamicInMemoryProxyFactory.cs
+++ b/src/Multicaster/InMemory/DynamicInMemoryProxyFactory.cs
@@ -13,7 +13,7 @@ public class DynamicInMemoryProxyFactory : IInMemoryProxyFactory
 
     static DynamicInMemoryProxyFactory()
     {
-        _assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(new AssemblyName($"DynamicInMemoryProxyFactory-{Guid.NewGuid()}"), AssemblyBuilderAccess.Run);
+        _assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(new AssemblyName($"Cysharp.Runtime.Multicast.InMemory.DynamicInMemoryProxyFactory-{Guid.NewGuid()}"), AssemblyBuilderAccess.Run);
         _moduleBuilder = _assemblyBuilder.DefineDynamicModule("Multicaster");
     }
 
diff --git a/src/Multicaster/Remoting/DynamicRemoteProxyFactory.cs b/src/Multicaster/Remoting/DynamicRemoteProxyFactory.cs
index fea84c1..88df08e 100644
--- a/src/Multicaster/Remoting/DynamicRemoteProxyFactory.cs
+++ b/src/Multicaster/Remoting/DynamicRemoteProxyFactory.cs
@@ -13,7 +13,7 @@ public class DynamicRemoteProxyFactory : IRemoteProxyFactory
 
     static DynamicRemoteProxyFactory()
     {
-        _assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(new AssemblyName($"DynamicRemoteProxyFactory-{Guid.NewGuid()}"), AssemblyBuilderAccess.Run);
+        _assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(new AssemblyName($"Cysharp.Runtime.Multicast.Remoting.DynamicRemoteProxyFactory-{Guid.NewGuid()}"), AssemblyBuilderAccess.Run);
         _moduleBuilder = _assemblyBuilder.DefineDynamicModule("Multicaster");
     }