diff --git a/app/views/proposals/_tooltip.html.haml b/app/views/proposals/_tooltip.html.haml
index 4dc2c2aa..23fb1c0d 100644
--- a/app/views/proposals/_tooltip.html.haml
+++ b/app/views/proposals/_tooltip.html.haml
@@ -1,31 +1,31 @@
 - progress_status = event.progress_status
 %ul.list-unstyled
   - if can? :create, @conference.registrations.new
-    %li{'class'=>class_for_todo(progress_status['registered'])}
-      %span{'class'=>icon_for_todo(progress_status['registered'])}
-        - if progress_status['registered']
+    %li{class: class_for_todo(progress_status[:registered])}
+      %span{class: icon_for_todo(progress_status[:registered])}
+        - if progress_status[:registered]
           Speaker(s) registered to the conference
         - else
           = link_to 'Speaker(s) not registered to the conference', new_conference_conference_registration_path(event.program.conference.short_title)
-  %li{'class'=>class_for_todo(progress_status['biographies'])}
-    %span{'class'=>icon_for_todo(progress_status['biographies'])}
-      - if progress_status['biographies']
+  %li{class: class_for_todo(progress_status[:biographies])}
+    %span{class: icon_for_todo(progress_status[:biographies])}
+      - if progress_status[:biographies]
         Speakers have filled out their biographies
       - elsif current_user.biography.blank? && event.speakers.include?(current_user)
         = link_to 'Fill out your biography', edit_user_path(current_user)
       - else
         Speakers' biographies missing
-  %li{'class'=>class_for_todo(progress_status['subtitle'])}
-    %span{'class'=>icon_for_todo(progress_status['subtitle'])}
+  %li{class: class_for_todo(progress_status[:subtitle])}
+    %span{class: icon_for_todo(progress_status[:subtitle])}
       = link_to 'Add a subtitle', edit_conference_program_proposal_path(event.program.conference.short_title, event)
-  %li{'class'=>class_for_todo(progress_status['commercials'])}
-    %span{'class'=>icon_for_todo(progress_status['commercials'])}
+  %li{class: class_for_todo(progress_status[:commercials])}
+    %span{class: icon_for_todo(progress_status[:commercials])}
       = link_to 'Add materials', edit_conference_program_proposal_path(event.program.conference.short_title, event, anchor: 'commercials-content')
-  - unless progress_status['track'].nil?
-    %li{'class'=>class_for_todo(progress_status['track'])}
-      %span{'class'=>icon_for_todo(progress_status['track'])}
+  - unless progress_status[:track].nil?
+    %li{class: class_for_todo(progress_status[:track])}
+      %span{class: icon_for_todo(progress_status[:track])}
         = link_to 'Add a track', edit_conference_program_proposal_path(event.program.conference.short_title, event)
   - unless progress_status[:difficulty_level].nil?
-    %li{'class'=>class_for_todo(progress_status['difficulty_level'])}
-      %span{'class'=>icon_for_todo(progress_status['difficulty_level'])}
+    %li{class: class_for_todo(progress_status[:difficulty_level])}
+      %span{class: icon_for_todo(progress_status[:difficulty_level])}
         = link_to 'Add a difficulty level', edit_conference_program_proposal_path(event.program.conference.short_title, event)