diff --git a/wp-admin/css/wp-admin.css b/wp-admin/css/wp-admin.css
index 94c0f5946f..da275dde7d 100644
--- a/wp-admin/css/wp-admin.css
+++ b/wp-admin/css/wp-admin.css
@@ -4105,6 +4105,7 @@ body .ui-slider-tooltip {
 
 #image-preview img {
 	width: auto;
+	height: auto;
 	max-height: 300px;
 }