diff --git a/app/assets/javascripts/discourse/lib/safari-hacks.js.es6 b/app/assets/javascripts/discourse/lib/safari-hacks.js.es6
index 7d0042d98e2..695022969d3 100644
--- a/app/assets/javascripts/discourse/lib/safari-hacks.js.es6
+++ b/app/assets/javascripts/discourse/lib/safari-hacks.js.es6
@@ -14,7 +14,7 @@ export function isAppleDevice() {
 // available pixel of height for the editor
 function calcHeight(composingTopic) {
   const winHeight = window.innerHeight;
-  const ratio = composingTopic ? 0.44 : 0.5;
+  const ratio = composingTopic ? 0.45 : 0.48;
   const min = composingTopic ? 300 : 350;
   return Math.max(parseInt(winHeight*ratio), min);
 }