diff --git a/src/chocolatey.resources/helpers/functions/Get-ChocolateyUnzip.ps1 b/src/chocolatey.resources/helpers/functions/Get-ChocolateyUnzip.ps1
index 06763379b2..337186fa21 100644
--- a/src/chocolatey.resources/helpers/functions/Get-ChocolateyUnzip.ps1
+++ b/src/chocolatey.resources/helpers/functions/Get-ChocolateyUnzip.ps1
@@ -90,7 +90,7 @@ param(
   [alias("file")][parameter(Mandatory=$false, Position=0)][string] $fileFullPath,
   [parameter(Mandatory=$true, Position=1)][string] $destination,
   [parameter(Mandatory=$false, Position=2)][string] $specificFolder,
-  [parameter(Mandatory=$false, Position=3)][string] $packageName,
+  [parameter(Mandatory=$false, Position=3)][string] $packageName = $env:chocolateyPackageName,
   [alias("file64")][parameter(Mandatory=$false)][string] $fileFullPath64,
   [parameter(ValueFromRemainingArguments = $true)][Object[]] $ignoredArguments
 )
diff --git a/src/chocolatey.resources/helpers/functions/Get-ChocolateyWebFile.ps1 b/src/chocolatey.resources/helpers/functions/Get-ChocolateyWebFile.ps1
index 246cef1248..059e833bd4 100644
--- a/src/chocolatey.resources/helpers/functions/Get-ChocolateyWebFile.ps1
+++ b/src/chocolatey.resources/helpers/functions/Get-ChocolateyWebFile.ps1
@@ -188,7 +188,7 @@ Get-WebFileName
 Get-FtpFile
 #>
 param(
-  [parameter(Mandatory=$true, Position=0)][string] $packageName,
+  [parameter(Mandatory=$false, Position=0)][string] $packageName = $env:chocolateyPackageName,
   [parameter(Mandatory=$true, Position=1)][string] $fileFullPath,
   [parameter(Mandatory=$false, Position=2)][string] $url = '',
   [parameter(Mandatory=$false, Position=3)]
diff --git a/src/chocolatey.resources/helpers/functions/Install-ChocolateyInstallPackage.ps1 b/src/chocolatey.resources/helpers/functions/Install-ChocolateyInstallPackage.ps1
index c17bc6c266..d9ba5ed83e 100644
--- a/src/chocolatey.resources/helpers/functions/Install-ChocolateyInstallPackage.ps1
+++ b/src/chocolatey.resources/helpers/functions/Install-ChocolateyInstallPackage.ps1
@@ -211,7 +211,7 @@ Get-UninstallRegistryKey
 Start-ChocolateyProcessAsAdmin
 #>
 param(
-  [parameter(Mandatory=$true, Position=0)][string] $packageName,
+  [parameter(Mandatory=false, Position=0)][string] $packageName = $env:chocolateyPackageName,
   [parameter(Mandatory=$false, Position=1)]
   [alias("installerType","installType")][string] $fileType = 'exe',
   [parameter(Mandatory=$false, Position=2)][string[]] $silentArgs = '',
diff --git a/src/chocolatey.resources/helpers/functions/Install-ChocolateyPackage.ps1 b/src/chocolatey.resources/helpers/functions/Install-ChocolateyPackage.ps1
index d5ac643bcf..23e4c6aff0 100644
--- a/src/chocolatey.resources/helpers/functions/Install-ChocolateyPackage.ps1
+++ b/src/chocolatey.resources/helpers/functions/Install-ChocolateyPackage.ps1
@@ -341,7 +341,7 @@ Get-UninstallRegistryKey
 Install-ChocolateyZipPackage
 #>
 param(
-  [parameter(Mandatory=$true, Position=0)][string] $packageName,
+  [parameter(Mandatory=$false, Position=0)][string] $packageName = $env:chocolateyPackageName,
   [parameter(Mandatory=$false, Position=1)]
   [alias("installerType","installType")][string] $fileType = 'exe',
   [parameter(Mandatory=$false, Position=2)][string[]] $silentArgs = '',
diff --git a/src/chocolatey.resources/helpers/functions/Install-ChocolateyVsixPackage.ps1 b/src/chocolatey.resources/helpers/functions/Install-ChocolateyVsixPackage.ps1
index f86866c591..318e06d4e3 100644
--- a/src/chocolatey.resources/helpers/functions/Install-ChocolateyVsixPackage.ps1
+++ b/src/chocolatey.resources/helpers/functions/Install-ChocolateyVsixPackage.ps1
@@ -137,7 +137,7 @@ Install-ChocolateyInstallPackage
 Install-ChocolateyZipPackage
 #>
 param(
-  [alias("name")][parameter(Mandatory=$true, Position=0)][string] $packageName,
+  [alias("name")][parameter(Mandatory=$false, Position=0)][string] $packageName = $env:chocolateyPackageName,
   [alias("url")][parameter(Mandatory=$false, Position=1)][string] $vsixUrl,
   [alias("visualStudioVersion")][parameter(Mandatory=$false, Position=2)][int] $vsVersion = 0,
   [parameter(Mandatory=$false)][string] $checksum = '',
diff --git a/src/chocolatey.resources/helpers/functions/Install-ChocolateyZipPackage.ps1 b/src/chocolatey.resources/helpers/functions/Install-ChocolateyZipPackage.ps1
index d6aad516c7..7cfc8288a9 100644
--- a/src/chocolatey.resources/helpers/functions/Install-ChocolateyZipPackage.ps1
+++ b/src/chocolatey.resources/helpers/functions/Install-ChocolateyZipPackage.ps1
@@ -173,7 +173,7 @@ Get-ChocolateyWebFile
 Get-ChocolateyUnzip
 #>
 param(
-  [parameter(Mandatory=$true, Position=0)][string] $packageName,
+  [parameter(Mandatory=$false, Position=0)][string] $packageName = $env:chocolateyPackageName,
   [parameter(Mandatory=$false, Position=1)][string] $url = '',
   [parameter(Mandatory=$true, Position=2)]
   [alias("destination")][string] $unzipLocation,
diff --git a/src/chocolatey.resources/helpers/functions/UnInstall-ChocolateyZipPackage.ps1 b/src/chocolatey.resources/helpers/functions/UnInstall-ChocolateyZipPackage.ps1
index dd4481a90b..5d5ac8b1ab 100644
--- a/src/chocolatey.resources/helpers/functions/UnInstall-ChocolateyZipPackage.ps1
+++ b/src/chocolatey.resources/helpers/functions/UnInstall-ChocolateyZipPackage.ps1
@@ -56,7 +56,7 @@ Install-ChocolateyZipPackage
 Uninstall-ChocolateyPackage
 #>
 param(
-  [parameter(Mandatory=$true, Position=0)][string] $packageName,
+  [parameter(Mandatory=$false, Position=0)][string] $packageName = $env:chocolateyPackageName,
   [parameter(Mandatory=$true, Position=1)][string] $zipFileName,
   [parameter(ValueFromRemainingArguments = $true)][Object[]] $ignoredArguments
 )
diff --git a/src/chocolatey.resources/helpers/functions/Uninstall-ChocolateyPackage.ps1 b/src/chocolatey.resources/helpers/functions/Uninstall-ChocolateyPackage.ps1
index 126ec54c22..8040a39d7a 100644
--- a/src/chocolatey.resources/helpers/functions/Uninstall-ChocolateyPackage.ps1
+++ b/src/chocolatey.resources/helpers/functions/Uninstall-ChocolateyPackage.ps1
@@ -107,7 +107,7 @@ Uninstall-ChocolateyZipPackage
 Get-UninstallRegistryKey
 #>
 param(
-  [parameter(Mandatory=$true, Position=0)][string] $packageName,
+  [parameter(Mandatory=$false, Position=0)][string] $packageName = $env:chocolateyPackageName,
   [parameter(Mandatory=$false, Position=1)]
   [alias("installerType")][string] $fileType = 'exe',
   [parameter(Mandatory=$false, Position=2)][string[]] $silentArgs = '',