diff --git a/src/Runner.Worker/Dap/YamlScalarFormatter.cs b/src/Runner.Worker/Dap/YamlScalarFormatter.cs
index 15fa3f380..2191f1c29 100644
--- a/src/Runner.Worker/Dap/YamlScalarFormatter.cs
+++ b/src/Runner.Worker/Dap/YamlScalarFormatter.cs
@@ -57,7 +57,7 @@ namespace GitHub.Runner.Worker.Dap
             {
                 raw = raw.Substring(0, raw.Length - DocEndMarker.Length);
             }
-            return raw.TrimEnd('\n');
+            return raw;
         }
     }
 }
diff --git a/src/Test/L0/Worker/YamlScalarFormatterL0.cs b/src/Test/L0/Worker/YamlScalarFormatterL0.cs
index e4c441035..4c8ac320c 100644
--- a/src/Test/L0/Worker/YamlScalarFormatterL0.cs
+++ b/src/Test/L0/Worker/YamlScalarFormatterL0.cs
@@ -27,7 +27,7 @@ namespace GitHub.Runner.Common.Tests.Worker
             catch (Exception ex)
             {
                 throw new Xunit.Sdk.XunitException(
-                    $"Formatted scalar did not round-trip as valid YAML.\nInput: '{value}'\nFormatted: '{scalar}'\nFull YAML:\n{yaml}\nError: {ex.Message}");
+                    $"Formatted scalar did not round-trip as valid YAML.\nInput: '{value}'\nFormatted: '{scalar}'\nFull YAML:\n{yaml}\nError: {ex}");
             }
             Assert.NotNull(doc);
             Assert.True(doc.ContainsKey("k"), $"missing key in parsed doc. Formatted: '{scalar}'");