diff --git a/app/assets/javascripts/discourse/lib/safari-hacks.js.es6 b/app/assets/javascripts/discourse/lib/safari-hacks.js.es6
index 7cb249b15e2..9e3a72c6cfa 100644
--- a/app/assets/javascripts/discourse/lib/safari-hacks.js.es6
+++ b/app/assets/javascripts/discourse/lib/safari-hacks.js.es6
@@ -33,6 +33,12 @@ function calcHeight() {
     if (window.screen.height === 736) {
       withoutKeyboard = smallViewport ? 353 : 383;
     }
+
+    // iPhone X
+    if (window.screen.height === 812) {
+      withoutKeyboard = smallViewport ? 340 : 370;
+    }
+
     // iPad can use innerHeight cause it renders nothing in the footer
     if (window.innerHeight > 920) {
       withoutKeyboard -= 45;