diff --git a/lib/email/styles.rb b/lib/email/styles.rb
index c39583361..7c1e43a97 100644
--- a/lib/email/styles.rb
+++ b/lib/email/styles.rb
@@ -38,7 +38,7 @@ module Email
           # having no extra style on email images might work best?
           img['width'] = 'auto'
           img['height'] = 'auto'
-          # add_styles(img, 'max-width:100%;') if img['style'] !~ /max-width/
+          add_styles(img, 'max-width:100%;') if img['style'] !~ /max-width/
         end
 
         # ensure all urls are absolute