diff --git a/test/index.html b/test/index.html
index 23c57b6a93..9c7da4fc9e 100644
--- a/test/index.html
+++ b/test/index.html
@@ -136,7 +136,7 @@
                     if (event.deltaX > 0)
                         o += ' east (' + event.deltaX + ')';
                     else if (event.deltaX < 0)
-                        o += ' south (' + event.deltaX + ')';
+                        o += ' west (' + event.deltaX + ')';
 
                     o += ' deltaFactor (' + event.deltaFactor + ')';