diff --git a/theme/boost/scss/moodle/core.scss b/theme/boost/scss/moodle/core.scss
index 90086d24df1..71c169bc360 100644
--- a/theme/boost/scss/moodle/core.scss
+++ b/theme/boost/scss/moodle/core.scss
@@ -239,8 +239,6 @@ img.resize {
 }
 
 .action-menu .userpicture {
-    width: auto;
-    height: auto;
     margin-left: 1rem;
 }