diff --git a/tests/GzipCmdlets.tests.ps1 b/tests/GzipCmdlets.tests.ps1
index 2141a94..46a80d8 100644
--- a/tests/GzipCmdlets.tests.ps1
+++ b/tests/GzipCmdlets.tests.ps1
@@ -109,8 +109,8 @@ Describe 'Gzip Cmdlets' {
         }
 
         It 'Should throw if trying to compress a directory' {
-            { 0..5 | ForEach-Object { New-Item (Join-Path $TestDrive "folder $_") } |
-                Compress-GzipArchive -DestinationPath $destination } |
+            $folders = 0..5 | ForEach-Object { New-Item (Join-Path $TestDrive "folder $_") }
+            { Compress-GzipArchive $folders.FullName -Destination $destination } |
                 Should -Throw
         }
 
diff --git a/tests/ZipEntryCmdlets.tests.ps1 b/tests/ZipEntryCmdlets.tests.ps1
index ba57ccf..5d83526 100644
--- a/tests/ZipEntryCmdlets.tests.ps1
+++ b/tests/ZipEntryCmdlets.tests.ps1
@@ -20,7 +20,7 @@ Describe 'ZipEntry Cmdlets' {
         }
 
         It 'Should throw if -Destination is a Directory' {
-            { New-ZipEntry -Destination $pwd -EntryPath foo } |
+            { New-ZipEntry -Destination $pwd.Path -EntryPath foo } |
                 Should -Throw
         }