diff --git a/web/app/controllers/groups.php b/web/app/controllers/groups.php
index c674871..067e4dc 100644
--- a/web/app/controllers/groups.php
+++ b/web/app/controllers/groups.php
@@ -78,7 +78,8 @@ EOD;
     				$new_group_form->printHTML();
     			}
     		},
-    		'head_pagination' => true
+    		'head_pagination' => true,
+			'pagination_table' => "`groups`"
     	)
     );
     ?>
diff --git a/web/app/controllers/problem_lists.php b/web/app/controllers/problem_lists.php
index e5140d2..3fef911 100644
--- a/web/app/controllers/problem_lists.php
+++ b/web/app/controllers/problem_lists.php
@@ -99,7 +99,8 @@ EOD;
 			'print_after_table' => function() {
 				global $myUser;
 			},
-			'head_pagination' => true
+			'head_pagination' => true,
+			'pagination_table' => 'lists'
 		)
 	);
 	?>
diff --git a/web/app/models/Paginator.php b/web/app/models/Paginator.php
index b3566cf..4578071 100644
--- a/web/app/models/Paginator.php
+++ b/web/app/models/Paginator.php
@@ -16,7 +16,10 @@ class Paginator {
 			$this->cur_start = 0;
 			$this->table = $config['data'];
 		} elseif (!isset($config['echo_full'])) {
-			$this->n_rows = DB::selectCount("select count(*) from {$config['table_name']} where {$config['cond']}");
+			if (!isset($config['pagination_table'])) {
+				$config['pagination_table'] = $config['table'];
+			}
+			$this->n_rows = DB::selectCount("select count(*) from {$config['pagination_table']} where {$config['cond']}");
 			
 			$this->page_len = isset($config['page_len']) ? $config['page_len'] : 10;