diff --git a/101-synapse-poc/azuredeploy.json b/101-synapse-poc/azuredeploy.json
index ac60085d0c99..66150f5ba692 100644
--- a/101-synapse-poc/azuredeploy.json
+++ b/101-synapse-poc/azuredeploy.json
@@ -449,7 +449,7 @@
           "logicAppName": {
             "value": "[variables('logicApps')[copyIndex()].name]"
           },
-          "logicAppPrincipalId": { "value": "[reference(resourceId('Microsoft.Logic/workflows', variables('logicApps')[copyIndex().name]), '2019-05-01', 'full').identity.principalId]" }
+          "logicAppPrincipalId": { "value": "[reference(resourceId('Microsoft.Logic/workflows', variables('logicApps')[copyIndex()].name), '2019-05-01', 'full').identity.principalId]" }
         }
       }
     }