diff --git a/app/assets/stylesheets/common/base/lightbox.scss b/app/assets/stylesheets/common/base/lightbox.scss
index afda8664ad4..06c32b1636c 100644
--- a/app/assets/stylesheets/common/base/lightbox.scss
+++ b/app/assets/stylesheets/common/base/lightbox.scss
@@ -10,9 +10,6 @@
 
 .lightbox-wrapper {
   display: inline-block;
-  img {
-    width: auto;
-  }
   &,
   * {
     outline: 0;