diff --git a/eng/common/TestResources/deploy-test-resources.yml b/eng/common/TestResources/deploy-test-resources.yml
index 23e68d94ec..1607a90672 100644
--- a/eng/common/TestResources/deploy-test-resources.yml
+++ b/eng/common/TestResources/deploy-test-resources.yml
@@ -55,14 +55,18 @@ steps:
         Inline: |
           eng/common/scripts/Import-AzModules.ps1
 
-          $subscriptionConfiguration = @'
-            ${{ parameters.SubscriptionConfiguration }}
-          '@ | ConvertFrom-Json -AsHashtable;
+
 
           if ('${{ parameters.SubscriptionConfigurationFilePath }}' -ne '') {
             $subscriptionConfiguration = `
               Get-Content '${{ parameters.SubscriptionConfigurationFilePath }}' `
               | ConvertFrom-Json -AsHashtable;
+          } else {
+            # Multiline string termination ('@) needs to be at the beginning
+            # of the line
+            $subscriptionConfiguration = @'
+              ${{ parameters.SubscriptionConfiguration }}
+          '@ | ConvertFrom-Json -AsHashtable;
           }
 
           # The subscriptionConfiguration may have ArmTemplateParameters defined, so
diff --git a/eng/common/TestResources/remove-test-resources.yml b/eng/common/TestResources/remove-test-resources.yml
index 9e4b39aa29..89aa7d825e 100644
--- a/eng/common/TestResources/remove-test-resources.yml
+++ b/eng/common/TestResources/remove-test-resources.yml
@@ -37,14 +37,18 @@ steps:
         Inline: |
           eng/common/scripts/Import-AzModules.ps1
 
-          $subscriptionConfiguration = @"
-            ${{ parameters.SubscriptionConfiguration }}
-          "@ | ConvertFrom-Json -AsHashtable;
 
           if ('${{ parameters.SubscriptionConfigurationFilePath }}' -ne '') {
             $subscriptionConfiguration = `
               Get-Content '${{ parameters.SubscriptionConfigurationFilePath }}' `
               | ConvertFrom-Json -AsHashtable;
+          } else {
+            # Multiline string termination ("@) needs to be at the beginning
+            # of the line
+            $subscriptionConfiguration = @"
+              ${{ parameters.SubscriptionConfiguration }}
+          "@ | ConvertFrom-Json -AsHashtable;
+
           }
 
           eng/common/TestResources/Remove-TestResources.ps1 `