diff --git a/examples/js/vr/WebVRCamera.js b/examples/js/vr/WebVRCamera.js
index e8864f8c97f7d5f18a11e384df1ad078d523032d..775d42770691a9cad2b24a6ce8fabe7f7159f403 100644
--- a/examples/js/vr/WebVRCamera.js
+++ b/examples/js/vr/WebVRCamera.js
@@ -122,7 +122,7 @@ THREE.WebVRCamera = function ( display, renderer ) {
 		// HACK @mrdoob
 		// Ideally we'll merge both projection matrices so we can frustum cull
 
-		scope.projectionMatrix = cameraL.projectionMatrix;
+		scope.projectionMatrix.copy( cameraL.projectionMatrix );
 
 		//