diff --git a/DoTests.ps1 b/DoTests.ps1
index 916d7e7..ce81979 100644
--- a/DoTests.ps1
+++ b/DoTests.ps1
@@ -1,3 +1,7 @@
+param(
+    [Switch]$DontCreateZip
+)
+
 ##
 #   Used in Appveyor.yml
 ##
@@ -8,10 +12,12 @@ $PSVersionTable.PSVersion
 ## Otherwise the EPPlus.dll is in use after the Pester run
 $ModuleVersion = (Get-Content -Raw .\ImportExcel.psd1)  | Invoke-Expression | ForEach-Object ModuleVersion
 
-$dest = "ImportExcel-{0}-{1}.zip" -f $ModuleVersion, (Get-Date).ToString("yyyyMMddHHmmss")
-Compress-Archive -Path . -DestinationPath .\$dest
+if (!$DontCreateZip) {
+    $dest = "ImportExcel-{0}-{1}.zip" -f $ModuleVersion, (Get-Date).ToString("yyyyMMddHHmmss")
+    Compress-Archive -Path . -DestinationPath .\$dest
+}
 
-if ((Get-Module -ListAvailable pester) -eq $null) {
+if ($null -eq (Get-Module -ListAvailable pester)) {
     Install-Module -Name Pester -Repository PSGallery -Force -Scope CurrentUser
 }