diff --git a/src/MessagePack.UnityClient/Assets/Scripts/MessagePack/Resolvers/DynamicObjectResolver.cs b/src/MessagePack.UnityClient/Assets/Scripts/MessagePack/Resolvers/DynamicObjectResolver.cs
index 125d0069b..fa4d2422c 100644
--- a/src/MessagePack.UnityClient/Assets/Scripts/MessagePack/Resolvers/DynamicObjectResolver.cs
+++ b/src/MessagePack.UnityClient/Assets/Scripts/MessagePack/Resolvers/DynamicObjectResolver.cs
@@ -2019,19 +2019,6 @@ bool AddEmittableMemberOrIgnore(bool isIntKeyMode, EmittableMember member, bool
 
                             if (len != 0)
                             {
-                                if (len != 1)
-                                {
-                                    if (ctorEnumerator != null)
-                                    {
-                                        ctor = null;
-                                        break;
-                                    }
-                                    else
-                                    {
-                                        throw new MessagePackDynamicObjectResolverException("duplicate matched constructor parameter name:" + type.FullName + " parameterName:" + item.Name + " parameterType:" + item.ParameterType.Name);
-                                    }
-                                }
-
                                 paramMember = hasKey.First().Value;
                                 if (item.ParameterType.IsAssignableFrom(paramMember.Type) && paramMember.IsReadable)
                                 {
diff --git a/tests/MessagePack.Tests/ContractlessStandardResolverConstructorTests.cs b/tests/MessagePack.Tests/ContractlessStandardResolverConstructorTests.cs
index 9a755c966..d92819ecd 100644
--- a/tests/MessagePack.Tests/ContractlessStandardResolverConstructorTests.cs
+++ b/tests/MessagePack.Tests/ContractlessStandardResolverConstructorTests.cs
@@ -85,6 +85,43 @@ public TestConstructor2(int x, int y, int z)
             }
         }
 
+        public class TestConstructor3
+        {
+            private Guid x;
+            private Guid y;
+
+            public TestConstructor3(Guid x, Guid y)
+            {
+                this.x = x;
+                this.y = y;
+                this.CalledConstructorParameterCount = 2;
+            }
+
+            public int CalledConstructorParameterCount { get; }
+
+            public Guid X
+            {
+                get => this.x;
+                set => this.x = value;
+            }
+
+            public Guid Y
+            {
+                get => this.y;
+                set => this.y = value;
+            }
+        }
+
+        [Fact]
+        public void UseConstructor3()
+        {
+            var ctor = new TestConstructor3(Guid.NewGuid(), Guid.NewGuid());
+            var bin = MessagePackSerializer.Serialize(ctor, ContractlessStandardResolverAllowPrivate.Options);
+            var r = MessagePackSerializer.Deserialize<TestConstructor3>(bin, ContractlessStandardResolverAllowPrivate.Options)!;
+
+            r.CalledConstructorParameterCount.Is(2);
+        }
+
         [Fact]
         public void UseConstructor()
         {
@@ -95,6 +132,16 @@ public void UseConstructor()
             r.CalledConstructorParameterCount.Is(3);
         }
 
+        [Fact]
+        public void UseConstructor2()
+        {
+            var ctor = new TestConstructor1(10, 20, 30);
+            var bin = MessagePackSerializer.Serialize(ctor, ContractlessStandardResolver.Options);
+            var r = MessagePackSerializer.Deserialize<TestConstructor1>(bin, ContractlessStandardResolver.Options);
+
+            r.CalledConstructorParameterCount.Is(3);
+        }
+
         [Fact]
         public void IgnorePropertiesWithoutConstructorArgument()
         {