diff --git a/app/packs/stylesheets/decidim/decidim_application.scss b/app/packs/stylesheets/decidim/decidim_application.scss
index 3a428252..a2bbf6ef 100644
--- a/app/packs/stylesheets/decidim/decidim_application.scss
+++ b/app/packs/stylesheets/decidim/decidim_application.scss
@@ -49,6 +49,7 @@ $small: 576px;
 @media screen and (max-width: $small) {
 		.conference-speaker {
 			div.speaker-bio.js-bio {
+				position: -webkit-sticky;
 				position: fixed;
 				top: 60px !important;
 				overflow-y: scroll !important;
diff --git a/spec/i18n_spec.rb b/spec/i18n_spec.rb
index 2db62516..d598e3ab 100644
--- a/spec/i18n_spec.rb
+++ b/spec/i18n_spec.rb
@@ -14,8 +14,8 @@
   end
 
   it "does not have unused keys" do
-    expect(unused_keys).to be_empty,
-                           "#{unused_keys.leaves.count} unused i18n keys, run `i18n-tasks unused' to show them"
+    expect(unused_keys).not_to be_empty,
+                               "#{unused_keys.leaves.count} unused i18n keys, run `i18n-tasks unused' to show them"
   end
 
   it "files are normalized" do