diff --git a/src/components/structures/ScrollPanel.js b/src/components/structures/ScrollPanel.js
index cbbca3c468..c3c13b8a11 100644
--- a/src/components/structures/ScrollPanel.js
+++ b/src/components/structures/ScrollPanel.js
@@ -222,10 +222,12 @@ module.exports = React.createClass({
     // whether it will stay that way when the children update.
     isAtBottom: function() {
         const sn = this._getScrollNode();
-        // fractional values for scrollTop happen on certain browsers/platforms
+        // fractional values (both too big and too small)
+        // for scrollTop happen on certain browsers/platforms
         // when scrolled all the way down. E.g. Chrome 72 on debian.
-        // so ceil everything upwards to make sure it aligns.
-        return Math.ceil(sn.scrollTop) === Math.ceil(sn.scrollHeight - sn.clientHeight);
+        // so check difference <= 1;
+        return Math.abs(sn.scrollHeight - (sn.scrollTop + sn.clientHeight)) <= 1;
+
     },
 
     // returns the vertical height in the given direction that can be removed from