diff --git a/coin/provisioning/common/linux/install-vcpkg.sh b/coin/provisioning/common/linux/install-vcpkg.sh
index 27d9b3e2..6305c20e 100755
--- a/coin/provisioning/common/linux/install-vcpkg.sh
+++ b/coin/provisioning/common/linux/install-vcpkg.sh
@@ -87,4 +87,7 @@ export VCPKG_ROOT="$vcpkgRoot"
 export VCPKG_BINARY_SOURCES="files,$HOME/vcpkg-cache/binaries,readwrite"
 export X_VCPKG_ASSET_SOURCES="x-azurl,file:///$HOME/vcpkg-cache/assets,,readwrite"
 
+SetEnvVar VCPKG_BINARY_SOURCES "$VCPKG_BINARY_SOURCES"
+SetEnvVar X_VCPKG_ASSET_SOURCES "$X_VCPKG_ASSET_SOURCES"
+
 echo "vcpkg = $vcpkgVersion" >> ~/versions.txt
diff --git a/coin/provisioning/common/windows/install-vcpkg.ps1 b/coin/provisioning/common/windows/install-vcpkg.ps1
index 9b40afe0..581b0442 100644
--- a/coin/provisioning/common/windows/install-vcpkg.ps1
+++ b/coin/provisioning/common/windows/install-vcpkg.ps1
@@ -83,4 +83,7 @@ Set-EnvironmentVariable "VCPKG_ROOT" "$vcpkgRoot"
 $env:VCPKG_BINARY_SOURCES = "files,V:/binaries,readwrite"
 $env:X_VCPKG_ASSET_SOURCES = "x-azurl,file:///V:/assets,,readwrite"
 
+Set-EnvironmentVariable "VCPKG_BINARY_SOURCES" $env:VCPKG_BINARY_SOURCES
+Set-EnvironmentVariable "X_VCPKG_ASSET_SOURCES" $env:X_VCPKG_ASSET_SOURCES
+
 Write-Output "vcpkg = $vcpkgVersion" >> ~/versions.txt