diff --git a/percy/C4_Container Diagram Sample - bigbankplc.puml b/percy/C4_Container Diagram Sample - bigbankplc.puml
index e8f2a67..799f99f 100644
--- a/percy/C4_Container Diagram Sample - bigbankplc.puml	
+++ b/percy/C4_Container Diagram Sample - bigbankplc.puml	
@@ -3,7 +3,7 @@
 !include ./../C4_Context.puml
 !include ./../C4.puml
 
-LAYOUT_TOP_DOWN
+LAYOUT_TOP_DOWN()
 'LAYOUT_AS_SKETCH()
 LAYOUT_WITH_LEGEND()
 
diff --git a/percy/C4_Container Diagram Sample - message bus.puml b/percy/C4_Container Diagram Sample - message bus.puml
index 3e13a5a..d57d3d6 100644
--- a/percy/C4_Container Diagram Sample - message bus.puml	
+++ b/percy/C4_Container Diagram Sample - message bus.puml	
@@ -6,7 +6,7 @@
 skinparam wrapWidth 200
 skinparam maxMessageSize 200
 
-LAYOUT_TOP_DOWN
+LAYOUT_TOP_DOWN()
 'LAYOUT_AS_SKETCH()
 LAYOUT_WITH_LEGEND()
 
diff --git a/percy/C4_Container Diagram Sample - techtribesjs.puml b/percy/C4_Container Diagram Sample - techtribesjs.puml
index 7a4e861..d78a459 100644
--- a/percy/C4_Container Diagram Sample - techtribesjs.puml	
+++ b/percy/C4_Container Diagram Sample - techtribesjs.puml	
@@ -3,7 +3,7 @@
 !include ./../C4_Context.puml
 !include ./../C4.puml
 
-LAYOUT_TOP_DOWN
+LAYOUT_TOP_DOWN()
 'LAYOUT_AS_SKETCH()
 LAYOUT_WITH_LEGEND()
 
diff --git a/percy/C4_Context Diagram Sample - bigbankplc-landscape.puml b/percy/C4_Context Diagram Sample - bigbankplc-landscape.puml
index 9e01412..73915dc 100644
--- a/percy/C4_Context Diagram Sample - bigbankplc-landscape.puml	
+++ b/percy/C4_Context Diagram Sample - bigbankplc-landscape.puml	
@@ -2,8 +2,8 @@
 !include ./../C4_Context.puml
 !include ./../C4.puml
 
-'LAYOUT_TOP_DOWN
-'LAYOUT_AS_SKETCH
+'LAYOUT_TOP_DOWN()
+'LAYOUT_AS_SKETCH()
 LAYOUT_WITH_LEGEND()
 
 title System Landscape diagram for Big Bank plc
diff --git a/percy/C4_Context Diagram Sample - enterprise.puml b/percy/C4_Context Diagram Sample - enterprise.puml
index 0bf6d4f..dc8d084 100644
--- a/percy/C4_Context Diagram Sample - enterprise.puml	
+++ b/percy/C4_Context Diagram Sample - enterprise.puml	
@@ -2,7 +2,7 @@
 !include ./../C4_Context.puml
 !include ./../C4.puml
 
-LAYOUT_TOP_DOWN
+LAYOUT_TOP_DOWN()
 'LAYOUT_AS_SKETCH()
 LAYOUT_WITH_LEGEND()