diff --git a/ext/numeric_score/main.php b/ext/numeric_score/main.php
index 8cb65a7b..b7efed34 100644
--- a/ext/numeric_score/main.php
+++ b/ext/numeric_score/main.php
@@ -247,9 +247,9 @@ class NumericScore extends Extension {
 				"images.id in (SELECT image_id FROM numeric_score_votes WHERE user_id=:ns_user_id AND score=-1)",
 				array("ns_user_id"=>$iid)));
 		}
-		else if(preg_match("/^order[=|:](numeric_)?(score)[_]?(desc|asc)?$/i", $event->term, $matches)){
+		else if(preg_match("/^order[=|:](?:numeric_)?(score)(?:_(desc|asc))?$/i", $event->term, $matches)){
 			$default_order_for_column = "DESC";
-			$sort = isset($matches[3]) ? strtoupper($matches[3]) : $default_order_for_column;
+			$sort = isset($matches[2]) ? strtoupper($matches[2]) : $default_order_for_column;
 			Image::$order_sql = "images.numeric_score $sort";
 			$event->add_querylet(new Querylet("1=1")); //small hack to avoid metatag being treated as normal tag
 		}
diff --git a/ext/user/main.php b/ext/user/main.php
index 19f87ca7..32d31eaa 100644
--- a/ext/user/main.php
+++ b/ext/user/main.php
@@ -313,8 +313,8 @@ class UserPage extends Extension {
 		global $user;
 
 		$matches = array();
-		if(preg_match("/^(poster|user)[=|:](.*)$/i", $event->term, $matches)) {
-			$duser = User::by_name($matches[2]);
+		if(preg_match("/^(?:poster|user)[=|:](.*)$/i", $event->term, $matches)) {
+			$duser = User::by_name($matches[1]);
 			if(!is_null($duser)) {
 				$user_id = $duser->id;
 			}
@@ -323,12 +323,12 @@ class UserPage extends Extension {
 			}
 			$event->add_querylet(new Querylet("images.owner_id = $user_id"));
 		}
-		else if(preg_match("/^(poster|user)_id[=|:]([0-9]+)$/i", $event->term, $matches)) {
-			$user_id = int_escape($matches[2]);
+		else if(preg_match("/^(?:poster|user)_id[=|:]([0-9]+)$/i", $event->term, $matches)) {
+			$user_id = int_escape($matches[1]);
 			$event->add_querylet(new Querylet("images.owner_id = $user_id"));
 		}
-		else if($user->can("view_ip") && preg_match("/^(poster|user)_ip[=|:]([0-9\.]+)$/i", $event->term, $matches)) {
-			$user_ip = $matches[2]; // FIXME: ip_escape?
+		else if($user->can("view_ip") && preg_match("/^(?:poster|user)_ip[=|:]([0-9\.]+)$/i", $event->term, $matches)) {
+			$user_ip = $matches[1]; // FIXME: ip_escape?
 			$event->add_querylet(new Querylet("images.owner_ip = '$user_ip'"));
 		}
 	}