diff --git a/phpBB/styles/prosilver/template/overall_header.html b/phpBB/styles/prosilver/template/overall_header.html
index f38a087832..03ff013f49 100644
--- a/phpBB/styles/prosilver/template/overall_header.html
+++ b/phpBB/styles/prosilver/template/overall_header.html
@@ -103,10 +103,10 @@ <h1 style="float:left;margin-right:0px;margin-top:0px;">Development Discussion B
 				        <fieldset>
 					        <input name="keywords" id="keywords" type="search" maxlength="128" title="{L_SEARCH_KEYWORDS}" class="inputbox search tiny" size="20" value="{SEARCH_WORDS}" placeholder="{L_SEARCH_MINI}" />
 							<button class="button button-search" type="submit" title="{L_SEARCH}">
-								{{ Icon('iconify', 'fa:search', lang('SEARCH'), true, 'c-button-icon') }}
+								{{ Icon('font', 'search', lang('SEARCH'), true, 'fas c-button-icon') }}
 					        </button>
 							<a href="{U_SEARCH}" class="button button-search-end" title="{L_SEARCH_ADV}">
-								{{ Icon('iconify', 'fa:cog', lang('SEARCH_ADV'), true, 'c-button-icon') }}
+								{{ Icon('font', 'gear', lang('SEARCH_ADV'), true, 'fas c-button-icon') }}
 					        </a>
 					        {S_SEARCH_HIDDEN_FIELDS}
 				        </fieldset>