diff --git a/paper-tabs.html b/paper-tabs.html
index ae2c1b8..adf4d2c 100644
--- a/paper-tabs.html
+++ b/paper-tabs.html
@@ -511,7 +511,7 @@
         var scrollLeft = this.$.tabsContainer.scrollLeft;
 
         this._leftHidden = scrollLeft === 0;
-        this._rightHidden = scrollLeft === this._tabContainerScrollSize;
+        this._rightHidden = Math.ceil(scrollLeft) >= this._tabContainerScrollSize;
       },
 
       _onLeftScrollButtonDown: function() {