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
diff --git a/v2docs/Microsoft.PowerShell.PlatyPS/New-MarkdownCommandHelp.md b/v2docs/Microsoft.PowerShell.PlatyPS/New-MarkdownCommandHelp.md
index 410643d3..4187c36e 100644
--- a/v2docs/Microsoft.PowerShell.PlatyPS/New-MarkdownCommandHelp.md
+++ b/v2docs/Microsoft.PowerShell.PlatyPS/New-MarkdownCommandHelp.md
@@ -24,7 +24,7 @@ Creates Markdown help files for PowerShell modules and commands.
 New-MarkdownCommandHelp -OutputFolder <string> [-CommandInfo <CommandInfo[]>] [-Encoding <Encoding>]
  [-Force] [-HelpUri <string>] [-HelpInfoUri <string>] [-HelpVersion <version>] [-Locale <string>]
  [-Metadata <hashtable>] [-ModuleInfo <psmoduleinfo[]>] [-WithModulePage]
- [-AbbreviateParameterTypename] [-WhatIf] [-Confirm] [<CommonParameters>]
+ [-AbbreviateParameterTypeName] [-WhatIf] [-Confirm] [<CommonParameters>]
 ```
 
 ## ALIASES
@@ -61,7 +61,7 @@ New-MarkdownCommandHelp @newMarkdownCommandHelpSplat
 
 ## PARAMETERS
 
-### -AbbreviateParameterTypename
+### -AbbreviateParameterTypeName
 
 By default, this command uses full type names in the parameter metadata and for the input and output
 types. When you use this parameter, the cmdlet outputs short type names.