diff --git a/samples/C4 usage - Highly scalable web application.puml b/samples/C4 usage - Highly scalable web application.puml
index c6a38798..fcf04830 100644
--- a/samples/C4 usage - Highly scalable web application.puml	
+++ b/samples/C4 usage - Highly scalable web application.puml	
@@ -15,7 +15,7 @@
 !includeurl AzurePuml/Storage/AzureBlobStorage.puml
 !includeurl AzurePuml/Storage/AzureQueueStorage.puml
 
-LAYOUT_WITH_LEGEND
+LAYOUT_WITH_LEGEND()
 
 Person(user, "User")
 
diff --git a/samples/C4 usage - IoT Reference Architecture - Stateful stream processing.puml b/samples/C4 usage - IoT Reference Architecture - Stateful stream processing.puml
index 83612d5f..10eef0df 100644
--- a/samples/C4 usage - IoT Reference Architecture - Stateful stream processing.puml	
+++ b/samples/C4 usage - IoT Reference Architecture - Stateful stream processing.puml	
@@ -14,7 +14,7 @@
 !includeurl AzurePuml/InternetOfThings/AzureIoTHub.puml
 
 LAYOUT_LEFT_RIGHT
-LAYOUT_WITH_LEGEND
+LAYOUT_WITH_LEGEND()
 
 System(devices, "Devices")