diff --git a/azure-purge-container-registry.yml b/azure-purge-container-registry.yml
index 329bc49464..e56005f092 100644
--- a/azure-purge-container-registry.yml
+++ b/azure-purge-container-registry.yml
@@ -31,6 +31,13 @@ jobs:
       - template: steps/azure_container_registry_purge.yml@templates
         parameters:
           azurecrName: pinscrsharedtoolinguks
-          repositories: "[\"appeal-planning-decision/appeals-service-api\",\"appeal-planning-decision/auth-server\",\"appeal-planning-decision/documents-api\",\"appeal-planning-decision/forms-web-app\",\"appeal-planning-decision/pdf-service-api\"]"
+          repositories: > 
+            [
+              "appeal-planning-decision/appeals-service-api",
+              "appeal-planning-decision/auth-server",
+              "appeal-planning-decision/documents-api",
+              "appeal-planning-decision/forms-web-app",
+              "appeal-planning-decision/pdf-service-api"
+            ]
     workspace:
       clean: all