diff --git a/Utils/New-CommandDataFile.ps1 b/Utils/New-CommandDataFile.ps1
index 5000e0a2f..4f986ef55 100644
--- a/Utils/New-CommandDataFile.ps1
+++ b/Utils/New-CommandDataFile.ps1
@@ -56,9 +56,9 @@ Function Get-CmdletDataFileName
         {
             $os = 'linux'
         }
-        elseif ($IsOSX)
+        elseif ($IsMacOS)
         {
-            $os = 'osx'
+            $os = 'macos'
         }
         # else it is windows, which is already set
     }
@@ -112,4 +112,4 @@ Add-Member -InputObject $shortModuleInfo -NotePropertyName 'ExportedAliases' -No
 
 $allShortModuleInfos = $shortModuleInfos + $shortModuleInfo
 $jsonData['Modules'] = $allShortModuleInfos
-$jsonData | ConvertTo-Json -Depth 4 | Out-File ((Get-CmdletDataFileName)) -Encoding utf8
\ No newline at end of file
+$jsonData | ConvertTo-Json -Depth 4 | Out-File ((Get-CmdletDataFileName)) -Encoding utf8