diff --git a/.azure/pipelines/update-pipeline-variable.yml b/.azure/pipelines/update-pipeline-variable.yml
index 5cc027c4..cd3cff7b 100644
--- a/.azure/pipelines/update-pipeline-variable.yml
+++ b/.azure/pipelines/update-pipeline-variable.yml
@@ -15,8 +15,8 @@ steps:
       [string]$repositoryUrl = $env:SYSTEM_COLLECTIONURI
       [string]$repositoryName = $env:SYSTEM_TEAMPROJECT
       [string]$definitionId = $env:SYSTEM_DEFINITIONID
-      [string]$variableName = ${{parameters.VariableName}}
-      [string]$variableValue = ${{parameters.VariableValue}}
+      [string]$variableName = '${{parameters.VariableName}}'
+      [string]$variableValue = '${{parameters.VariableValue}}'
       [string]$accessToken = $env:SYSTEM_ACCESSTOKEN
       [string]$debugMode = $env.SYSTEM_DEBUG