diff --git a/wowchemy/layouts/section/publication.html b/wowchemy/layouts/section/publication.html
index f42e179a..f311e084 100644
--- a/wowchemy/layouts/section/publication.html
+++ b/wowchemy/layouts/section/publication.html
@@ -18,7 +18,7 @@
 
       <div class="form-row mb-4">
         <div class="col-auto">
-          <input type="search" class="filter-search" placeholder="{{ i18n "search_placeholder" }}" autocapitalize="off"
+          <input type="search" class="filter-search form-control form-control-sm" placeholder="{{ i18n "search_placeholder" }}" autocapitalize="off"
           autocomplete="off" autocorrect="off" role="textbox" spellcheck="false">
         </div>
         <div class="col-auto">