diff --git a/examples/jsm/renderers/common/nodes/Nodes.js b/examples/jsm/renderers/common/nodes/Nodes.js
index 68046076c79021..d019ab008e269d 100644
--- a/examples/jsm/renderers/common/nodes/Nodes.js
+++ b/examples/jsm/renderers/common/nodes/Nodes.js
@@ -314,6 +314,7 @@ class Nodes extends DataMap {
 					if ( background.mapping === EquirectangularReflectionMapping || background.mapping === EquirectangularRefractionMapping ) {
 
 						nodeUV = equirectUV();
+						background.flipY = false;
 
 					} else {