diff --git a/Assets/VRM/Tests/InvalidFileNameTest.cs b/Assets/VRM/Tests/InvalidFileNameTest.cs
index 935bb0a41..26741209e 100644
--- a/Assets/VRM/Tests/InvalidFileNameTest.cs
+++ b/Assets/VRM/Tests/InvalidFileNameTest.cs
@@ -1,6 +1,5 @@
 using NUnit.Framework;
 using System.Linq;
-using System.IO;
 using UniGLTF;
 
 namespace VRM
@@ -31,19 +30,5 @@ namespace VRM
             var result = fileName.Any(x => char.IsControl(x));
             Assert.AreEqual(result, isIllegal);
         }
-
-        [Test]
-        [TestCase("VRM|Alicia?VRM", true)]
-        [TestCase("UniVRMUniVRM:UniVRM", true)]
-        [TestCase("VRMIsVRFileFormat", false)]
-        [TestCase("Alicia<Alicia>Alicia", true)]
-        [TestCase("UniVRMIsVRMImplementationInUnityPlatform", false)]
-        [TestCase("Avator*Avator/Avator", true)]
-        public void DetectInvalidCharacters(string fileName, bool isIllegal)
-        {
-            char[] invalidPathChars = Path.GetInvalidFileNameChars();
-            var result = fileName.Any(x => invalidPathChars.Contains(x));
-            Assert.AreEqual(result, isIllegal);
-        }
     }
 }