diff --git a/src/Microsoft.Sbom.Api/Workflows/SBOMParserBasedValidationWorkflow.cs b/src/Microsoft.Sbom.Api/Workflows/SBOMParserBasedValidationWorkflow.cs
index f0b47beb..7c6dc23d 100644
--- a/src/Microsoft.Sbom.Api/Workflows/SBOMParserBasedValidationWorkflow.cs
+++ b/src/Microsoft.Sbom.Api/Workflows/SBOMParserBasedValidationWorkflow.cs
@@ -206,7 +206,7 @@ private void LogIndividualFileResults(IEnumerable<FileValidationResult> validFai
             return;
         }
 
-        var caseSensitiveComment = validFailures.Any() && this.osUtils.IsCaseSensitiveOS() ?
+        var caseSensitiveComment = !validFailures.Any() || this.osUtils.IsCaseSensitiveOS() ?
             string.Empty :
             "\r\n  Note: If the manifest file was originally created using a" +
             "\r\n        case-sensitive OS, you may also need to validate it" +
diff --git a/test/Microsoft.Sbom.Api.Tests/ConsoleCapture.cs b/test/Microsoft.Sbom.Api.Tests/ConsoleCapture.cs
new file mode 100644
index 00000000..62f95641
--- /dev/null
+++ b/test/Microsoft.Sbom.Api.Tests/ConsoleCapture.cs
@@ -0,0 +1,60 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace Microsoft.Sbom.Api.Tests;
+
+using System;
+using System.IO;
+
+/// <summary>
+/// A simple class to capture console output. Always wrap it in a try/finally block to
+/// ensure that the original console output is restored.
+/// </summary>
+internal class ConsoleCapture
+{
+    private readonly TextWriter oldStdOut = Console.Out;
+    private readonly TextWriter oldStdError = Console.Error;
+    private TextWriter? stdOutWriter;
+    private TextWriter? stdErrWriter;
+
+    /// <summary>
+    /// The content of the captured output to StdOut. Is only valid after the Restore method has been called.
+    /// </summary>
+    public string CapturedStdOut { get; private set; } = string.Empty;
+
+    /// <summary>
+    /// The content of the captured output to StdError. Is only valid after the Restore method has been called.
+    /// </summary>
+    public string CapturedStdError { get; private set; } = string.Empty;
+
+    public ConsoleCapture()
+    {
+        stdOutWriter = new StringWriter();
+        Console.SetOut(stdOutWriter);
+
+        stdErrWriter = new StringWriter();
+        Console.SetError(stdErrWriter);
+    }
+
+    /// <summary>
+    /// Restores the original console output and sets the Captured* properties
+    /// </summary>
+    public void Restore()
+    {
+        if (stdOutWriter is not null)
+        {
+            CapturedStdOut = stdOutWriter?.ToString() ?? string.Empty;
+            Console.SetOut(oldStdOut);
+            stdOutWriter?.Dispose();
+            stdOutWriter = null;
+        }
+
+        if (stdErrWriter is not null)
+        {
+            CapturedStdError = stdErrWriter?.ToString() ?? string.Empty;
+            Console.SetError(oldStdError);
+            stdErrWriter?.Dispose();
+            stdErrWriter = null;
+        }
+    }
+}
diff --git a/test/Microsoft.Sbom.Api.Tests/Workflows/SbomParserBasedValidationWorkflowTests.cs b/test/Microsoft.Sbom.Api.Tests/Workflows/SbomParserBasedValidationWorkflowTests.cs
index 532ac92c..14604f39 100644
--- a/test/Microsoft.Sbom.Api.Tests/Workflows/SbomParserBasedValidationWorkflowTests.cs
+++ b/test/Microsoft.Sbom.Api.Tests/Workflows/SbomParserBasedValidationWorkflowTests.cs
@@ -43,6 +43,8 @@ namespace Microsoft.Sbom.Workflows;
 [TestClass]
 public class SbomParserBasedValidationWorkflowTests : ValidationWorkflowTestsBase
 {
+    private const string CaseSensitiveMessageMarker = "case-sensitive";
+
     private readonly Mock<ILogger> mockLogger = new();
     private readonly Mock<IOSUtils> mockOSUtils = new();
     private readonly Mock<IFileSystemUtilsExtension> fileSystemUtilsExtensionMock = new();
@@ -183,8 +185,18 @@ public async Task SbomParserBasedValidationWorkflowTests_ReturnsSuccessAndValida
             fileSystemMock.Object,
             osUtilsMock.Object);
 
-        var result = await validator.RunAsync();
-        Assert.IsTrue(result);
+        var cc = new ConsoleCapture();
+
+        try
+        {
+            var result = await validator.RunAsync();
+            Assert.IsTrue(result);
+        }
+        finally
+        {
+            cc.Restore();
+        }
+
         var nodeValidationResults = validationResultGenerator.NodeValidationResults;
 
         var additionalFileErrors = nodeValidationResults.Where(a => a.ErrorType == ErrorType.AdditionalFile).ToList();
@@ -200,6 +212,8 @@ public async Task SbomParserBasedValidationWorkflowTests_ReturnsSuccessAndValida
         var otherErrors = nodeValidationResults.Where(a => a.ErrorType == ErrorType.Other).ToList();
         Assert.AreEqual(0, otherErrors.Count);
 
+        Assert.IsFalse(cc.CapturedStdOut.Contains(CaseSensitiveMessageMarker), "Case-sensitive marker should not have been output");
+
         configurationMock.VerifyAll();
         signValidatorMock.VerifyAll();
         fileSystemMock.VerifyAll();
@@ -328,8 +342,18 @@ public async Task SbomParserBasedValidationWorkflowTests_ReturnsSuccessAndValida
             fileSystemMock.Object,
             osUtilsMock.Object);
 
-        var result = await validator.RunAsync();
-        Assert.IsFalse(result);
+        var cc = new ConsoleCapture();
+
+        try
+        {
+            var result = await validator.RunAsync();
+            Assert.IsFalse(result);
+        }
+        finally
+        {
+            cc.Restore();
+        }
+
         var nodeValidationResults = validationResultGenerator.NodeValidationResults;
 
         var additionalFileErrors = nodeValidationResults.Where(a => a.ErrorType == ErrorType.AdditionalFile).ToList();
@@ -348,6 +372,8 @@ public async Task SbomParserBasedValidationWorkflowTests_ReturnsSuccessAndValida
         Assert.AreEqual(1, otherErrors.Count);
         Assert.AreEqual("./child2/grandchild1/file10", otherErrors.First().Path);
 
+        Assert.IsTrue(cc.CapturedStdOut.Contains(CaseSensitiveMessageMarker), "Case-sensitive marker should have been output");
+
         configurationMock.VerifyAll();
         signValidatorMock.VerifyAll();
         fileSystemMock.VerifyAll();