diff --git a/phpBB/includes/acp/acp_modules.php b/phpBB/includes/acp/acp_modules.php
index f3540941df..75bc5766a9 100644
--- a/phpBB/includes/acp/acp_modules.php
+++ b/phpBB/includes/acp/acp_modules.php
@@ -658,6 +658,8 @@ class acp_modules
 
 			$iteration++;
 		}
+		$db->sql_freeresult($result);
+
 		unset($padding_store);
 
 		return $module_list;