diff --git a/api/v1/database/mastodon/accounts/search/mod.php b/api/v1/database/mastodon/accounts/search/mod.php
index 900e64a..495168a 100644
--- a/api/v1/database/mastodon/accounts/search/mod.php
+++ b/api/v1/database/mastodon/accounts/search/mod.php
@@ -157,7 +157,7 @@ if (filedb_exists('cache', $susp_file))
 if (isset($_GET['profile']) && trim($_GET['profile']) != '')
 {
 	$q = trim($_GET['profile']);
-	$q = base64_decode($q);
+	$q = urldecode(base64_decode($q));
 	$qt = null;
 	if ($q === '<empty>') {
 		$q = '';
diff --git a/views/instance.php b/views/instance.php
index 3d93432..c750b71 100644
--- a/views/instance.php
+++ b/views/instance.php
@@ -186,7 +186,7 @@ window.view.instance = {
 					profile = '<empty>';
 				else if (prof_stype === 'expr')
 					profile = 'expr: '+profile;
-				data.profile = btoa(profile);
+				data.profile = btoa(encodeURIComponent(profile));
 				var instances = E.element('#filters-current textarea[name=instances]').value.trim();
 				if (instances !== '') {
 					data.instances = instances;
@@ -238,7 +238,7 @@ window.view.instance = {
 						d.user_filter = 'remote';
 					E.element('#filters-current input[name=user_filter][value='+d.user_filter+']').click(); 
 					if (d.profile === undefined) d.profile = '';
-					d.profile = atob(d.profile);
+					d.profile = decodeURIComponent(atob(d.profile));
 					if (d.profile === '<empty>')
 						E.element('#filters-current #profile-search-type-empty').click();
 					else if (d.profile.startsWith('expr:')) {
@@ -340,6 +340,7 @@ window.view.instance = {
 					if (js.error !== undefined) return toast.error(js.error);
 					const filter = window.view.instance.do.filter_users.get_current_filter();
 					if (filter === undefined) return;
+					const filter_profile = decodeURIComponent(atob(filter.profile));
 					E.template('users-all', function(TPL) {
 						var html = '';
 						for (var i = 0; i < js['data'].length; i++) {
@@ -367,9 +368,9 @@ window.view.instance = {
 									for (var j = 0; j < it.fields.length; j++) {
 										var t = '<tr class="{verified}"><td>{name}</td><td>{value}</td>{verifiedColumn}</tr>';
 										t = t.replaceAll('{name}', window.view.instance.html_add_search_spans(
-											html2text(it.fields[j].name), atob(filter.profile)));
+											html2text(it.fields[j].name), filter_profile));
 										t = t.replaceAll('{value}', window.view.instance.html_add_search_spans(
-											html2text(it.fields[j].value), atob(filter.profile)));
+											html2text(it.fields[j].value), filter_profile));
 										t = t.replaceAll('{verified}', it.fields[j].verified_at !== undefined ? 'verified' : '');
 										t = t.replaceAll('{verifiedColumn}', it.fields[j].verified_at !== undefined ?
 											'<td title="verified"><i class="fa fa-check fa-fw"></i></td>' : '');
@@ -382,7 +383,7 @@ window.view.instance = {
 							tpl = tpl.replaceAll('{accountAdminLink}', 'javascript:void(0)');
 							tpl = tpl.replaceAll('{note}', it.note.trim() === '' ?
 								'&lt;empty&gt;' : window.view.instance.html_add_search_spans(
-									html2text(it.note), atob(filter.profile)));
+									html2text(it.note), filter_profile));
 							html += tpl;
 						}
 						return html;