diff --git a/examples/css3d_mixed.html b/examples/css3d_mixed.html
index 0088ff18423799..e1c15ac3013669 100644
--- a/examples/css3d_mixed.html
+++ b/examples/css3d_mixed.html
@@ -86,7 +86,7 @@
 				iframe.style.width = '1028px';
 				iframe.style.height = '768px';
 				iframe.style.border = '0px';
-				iframe.src = '/examples/#webgl_animation_keyframes';
+				iframe.src = './#webgl_animation_keyframes';
 				scene.add( new CSS3DObject( iframe ) );
 
 				// Add controls