diff --git a/app/assets/stylesheets/common/base/discourse.scss b/app/assets/stylesheets/common/base/discourse.scss
index a217ec48b75..07559c93d48 100644
--- a/app/assets/stylesheets/common/base/discourse.scss
+++ b/app/assets/stylesheets/common/base/discourse.scss
@@ -1,3 +1,7 @@
+img.avatar {
+  border-radius: 100px;
+}
+
 .container {
   @extend .clearfix;
   margin-right: auto;