diff --git a/MnCommonPsToolLib/MnCommonPsToolLib.psd1 b/MnCommonPsToolLib/MnCommonPsToolLib.psd1
index f8381b8..880c3ab 100644
--- a/MnCommonPsToolLib/MnCommonPsToolLib.psd1
+++ b/MnCommonPsToolLib/MnCommonPsToolLib.psd1
@@ -34,7 +34,7 @@
   }
   #HelpInfoURI            = '';
 
-  ModuleVersion          = '7.66';
+  ModuleVersion          = '7.67';
 
   <#
   Releasenotes
@@ -43,6 +43,7 @@
   Major version will reflect breaking changes, minor identifies extensions and third number identifies urgent bugfixes.
   Breaking changes are usually removed deprecated functions or changed behaviours.
 
+  2024-08-26  V7.67  Fix DriveFreeSpace.
   2024-08-18  V7.66  Fix FsEntryGetAbsolutePath, FsEntryListAsFileSystemInfo, DriveFreeSpace. Deprecate SvnExe. Extend OsWindowsRegRunDisable.
   2024-08-13  V7.65  Added ProcessStartByArray, ProcessStartByCmdLine. OsWindowsPackageListInstalled, OsWindowsPackageUninstall, OsWindowsRegRunDisable. Extend Doc. Improve ToolInstallNuPckMgrAndCommonPsGalMo, TaskIsDisabled, OsWindowsPackageUninstall.
   2024-08-10  V7.64  Extend Doc.
diff --git a/MnCommonPsToolLib/MnCommonPsToolLib.psm1 b/MnCommonPsToolLib/MnCommonPsToolLib.psm1
index d8158cf..ca65d18 100644
--- a/MnCommonPsToolLib/MnCommonPsToolLib.psm1
+++ b/MnCommonPsToolLib/MnCommonPsToolLib.psm1
@@ -1471,7 +1471,7 @@ function FsEntryGetSize                       ( [String] $fsEntry ){ # Must exis
                                                   Where-Object{$null -ne $_} | Measure-Object -Property length -sum;
                                                 if( $null -eq $size ){ return [Int64] 0; }
                                                 return [Int64] $size.sum; }
-function DriveFreeSpace                       ( [String] $driveLetter ){ return [Int64] (Get-PSDrive $drive | Select-Object -ExpandProperty Free); } # Example: "C"
+function DriveFreeSpace                       ( [String] $driveLetter ){ return [Int64] (Get-PSDrive $driveLetter | Select-Object -ExpandProperty Free); } # Example: "C"
 function DirSep                               (){ return [Char] [IO.Path]::DirectorySeparatorChar; }
 function DirExists                            ( [String] $dir ){
                                                 FsEntryAssertHasTrailingDirSep $dir;