diff --git a/Runtime/Reporters/JUnitXmlReporter.cs b/Runtime/Reporters/JUnitXmlReporter.cs
index 2fc783d..01b79c3 100644
--- a/Runtime/Reporters/JUnitXmlReporter.cs
+++ b/Runtime/Reporters/JUnitXmlReporter.cs
@@ -70,7 +70,10 @@ public override async UniTask PostReportAsync(string message, string stackTrace,
 
         internal static string GetOutputPath(string outputPathField, Arguments args = null)
         {
-            args ??= new Arguments();
+            if (args==null)
+            {
+                args = new Arguments();
+            }
 
             string path;
             if (args.JUnitReportPath.IsCaptured())
diff --git a/Tests/Runtime/Reporters/JUnitXmlReporterTest.cs b/Tests/Runtime/Reporters/JUnitXmlReporterTest.cs
index 9b0de6f..d1bf13e 100644
--- a/Tests/Runtime/Reporters/JUnitXmlReporterTest.cs
+++ b/Tests/Runtime/Reporters/JUnitXmlReporterTest.cs
@@ -279,7 +279,7 @@ public async Task PostReportAsync_Error()
             await sut.PostReportAsync("MESSAGE", "STACK TRACE", ExitCode.UnCatchExceptions);
             Assert.That(outputPath, Does.Exist);
 
-            var actual = await File.ReadAllTextAsync(outputPath);
+            var actual = File.ReadAllText(outputPath);
             var expected = @"<?xml version=""1.0"" encoding=""utf-8""?>
 <testsuites name=""DeNA.Anjin""
             disabled=""0""