diff --git a/src/pkgchk-cli/Commands.fs b/src/pkgchk-cli/Commands.fs
index 1a40ff18..0abb8b6e 100644
--- a/src/pkgchk-cli/Commands.fs
+++ b/src/pkgchk-cli/Commands.fs
@@ -10,14 +10,17 @@ type PackageCheckCommandSettings() =
 
     [<CommandArgument(0, "[SOLUTION|PROJECT]")>]
     [<Description("The solution or project file to check.")>]
+    [<DefaultValue("")>]
     member val ProjectPath = "" with get, set
 
     [<CommandOption("-t|--transitives")>]
-    [<Description("Check transitive packages as well as top level packages.")>]
-    member val IncludeTransitives = false with get, set
+    [<Description("Toggle transitive package checks. -t false to exclude transtiives, -t true to include them.")>]
+    [<DefaultValue(true)>]
+    member val IncludeTransitives = true with get, set
 
     [<CommandOption("-o|--output")>]
     [<Description("Output directory for reports.")>]
+    [<DefaultValue("")>]
     member val OutputDirectory = "" with get, set
 
 [<ExcludeFromCodeCoverage>]
diff --git a/tests/pkgchk-cli.tests/IntegrationTests.fs b/tests/pkgchk-cli.tests/IntegrationTests.fs
index bd12c054..7c5e9b86 100644
--- a/tests/pkgchk-cli.tests/IntegrationTests.fs
+++ b/tests/pkgchk-cli.tests/IntegrationTests.fs
@@ -40,7 +40,7 @@ module IntegrationTests =
         sprintf "dotnet add ./%s/testproj.csproj package %s -v 4.3.1" outDir regexPackage
 
     let runPkgChkArgs outDir =
-        sprintf "dotnet pkgchk-cli.dll ./%s/testproj.csproj -t" outDir
+        sprintf "dotnet pkgchk-cli.dll ./%s/testproj.csproj -t true" outDir
 
     let createProc cmd =
         let (exec, args) = cmdArgs cmd