diff --git a/tools/releaseBuild/macOS/PowerShellPackage.ps1 b/tools/releaseBuild/macOS/PowerShellPackage.ps1
index e4ee858361..2fdc90fed1 100644
--- a/tools/releaseBuild/macOS/PowerShellPackage.ps1
+++ b/tools/releaseBuild/macOS/PowerShellPackage.ps1
@@ -34,6 +34,7 @@ if ($ReleaseTag)
 Push-Location
 try {
     Set-Location /PowerShell
+    git submodule update --init --recursive --quiet
     Import-Module "/PowerShell/build.psm1"
     Import-Module "/PowerShell/tools/packaging"