diff --git a/build.fsx b/build.fsx
index eb261a5a..b768b643 100644
--- a/build.fsx
+++ b/build.fsx
@@ -127,8 +127,10 @@ Target "NBench" <| fun _ ->
                 |> append (filename project)
                 |> append "--output"
                 |> append outputPerfTests
-                |> append "--concurrent true" 
-                |> append "--trace true"
+                |> append "--concurrent" 
+                |> append "true"
+                |> append "--trace"
+                |> append "true"
                 |> append "--diagnostic"
                 |> append "--no-build"
                 |> toText
diff --git a/src/NBench.Execution/CommandLine.cs b/src/NBench.Execution/CommandLine.cs
index bf9a76f8..0ee442b4 100644
--- a/src/NBench.Execution/CommandLine.cs
+++ b/src/NBench.Execution/CommandLine.cs
@@ -166,21 +166,21 @@ public static string FormatCapturedArguments(bool includeOutput = true)
             string output = "";
 
             if (HasProperty(TracingKey))
-                output += $"{TracingKey}={GetSingle(TracingKey)} ";
+                output += $"{TracingKey} {GetSingle(TracingKey)} ";
 
             if (HasProperty(ConcurrentKey))
             {
-                output += $"{ConcurrentKey}={GetSingle(ConcurrentKey)} ";
+                output += $"{ConcurrentKey} {GetSingle(ConcurrentKey)} ";
             }
 
             if (HasProperty(ExcludeKey))
             {
-                output += $"{ExcludeKey}={string.Join(",", GetProperty(ExcludeKey))} ";
+                output += $"{ExcludeKey} {string.Join(",", GetProperty(ExcludeKey))} ";
             }
 
             if (HasProperty(IncludeKey))
             {
-                output += $"{IncludeKey}={string.Join(",", GetProperty(IncludeKey))} ";
+                output += $"{IncludeKey} {string.Join(",", GetProperty(IncludeKey))} ";
             }
 
             if (HasProperty(ConfigurationKey))
@@ -190,7 +190,7 @@ public static string FormatCapturedArguments(bool includeOutput = true)
 
             if (HasProperty(OutputKey) && includeOutput)
             {
-                output += $"{OutputKey}={GetSingle(OutputKey)} ";
+                output += $"{OutputKey} {GetSingle(OutputKey)} ";
             }
 
             if (HasProperty(DiagnosticsKey))