diff --git a/source/Ox.UI/js/Window/Ox.Tooltip.js b/source/Ox.UI/js/Window/Ox.Tooltip.js
index f5ae5831..2e013423 100644
--- a/source/Ox.UI/js/Window/Ox.Tooltip.js
+++ b/source/Ox.UI/js/Window/Ox.Tooltip.js
@@ -69,7 +69,7 @@ Ox.Tooltip = function(options, self) {
             width = that.width();
             height = that.height();
             left = Ox.limit(
-                self.x - width / 2, 0, window.innerWidth - width - 8
+                self.x - Math.round(width / 2), 0, window.innerWidth - width - 8
             );
             top = self.y > window.innerHeight - height - 16
                 ? self.y - 16 - height