diff --git a/src/Command/NewMarkdownHelpCommand.cs b/src/Command/NewMarkdownHelpCommand.cs
index 8e7447ac..e0327438 100644
--- a/src/Command/NewMarkdownHelpCommand.cs
+++ b/src/Command/NewMarkdownHelpCommand.cs
@@ -61,7 +61,7 @@ public sealed class NewMarkdownHelpCommand : PSCmdlet
         public SwitchParameter WithModulePage { get; set; }
 
         [Parameter]
-        public SwitchParameter AbbreviateParameterTypename { get; set; }
+        public SwitchParameter AbbreviateParameterTypeName { get; set; }
 
         #endregion
 
@@ -139,7 +139,7 @@ protected override void EndProcessing()
                         ModuleName = cmd.ModuleName is null ? string.Empty : cmd.ModuleName,
                         ModuleGuid = cmd.Module?.Guid is null ? Guid.Empty : cmd.Module.Guid,
                         OnlineVersionUrl = HelpUri,
-                        UseFullTypeName = ! AbbreviateParameterTypename
+                        UseFullTypeName = ! AbbreviateParameterTypeName
                     };
 
                     try
diff --git a/test/Pester/NewMarkdownHelp.Tests.ps1 b/test/Pester/NewMarkdownHelp.Tests.ps1
index dcb453b1..6883b845 100644
--- a/test/Pester/NewMarkdownHelp.Tests.ps1
+++ b/test/Pester/NewMarkdownHelp.Tests.ps1
@@ -554,7 +554,7 @@ Write-Host 'Hello World!'
             $expectedParameterNames = "CCC","ddd","WhatIf"
             $expectedParameterTypes = "String","Nullable``1[System.Int32]","SwitchParameter"
             $expectedSyntax = 'Get-Alpha [[-CCC] <string>] [[-ddd] <int>] [-WhatIf] [<CommonParameters>]'
-            $file = New-MarkdownCommandHelp -Command (get-command Get-Alpha) -OutputFolder "$TestDrive/alpha" -Force -AbbreviateParameterTypename
+            $file = New-MarkdownCommandHelp -Command (get-command Get-Alpha) -OutputFolder "$TestDrive/alpha" -Force -AbbreviateParameterTypeName
             $ch = Import-MarkdownCommandHelp $file
             $ch.Parameters.Name | Should -Be $expectedParameterNames
             $ch.Parameters.Type | Should -Be $expectedParameterTypes