diff --git a/lib/email/styles.rb b/lib/email/styles.rb
index 7c1e43a97ff..a333afa1d8c 100644
--- a/lib/email/styles.rb
+++ b/lib/email/styles.rb
@@ -77,7 +77,7 @@ module Email
       style('aside.quote', 'border-left: 5px solid #bebebe; background-color: #f1f1f1; padding: 12px 25px 2px 12px; margin-bottom: 10px;')
       style('aside.quote blockquote', 'border: 0px; padding: 0; margin: 7px 0')
       style('aside.quote div.info-line', 'color: #666; margin: 10px 0')
-      style('aside.quote .avatar', 'margin-right: 5px')
+      style('aside.quote .avatar', 'margin-right: 5px; width:20px; height:20px')
 
       # Oneboxes
       style('aside.onebox', "padding: 12px 25px 2px 12px; border-left: 5px solid #bebebe; background: #eee; margin-bottom: 10px;")