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-rw-r--r--system/libraries/User_agent.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/system/libraries/User_agent.php b/system/libraries/User_agent.php
index 11af21491..04cda7312 100644
--- a/system/libraries/User_agent.php
+++ b/system/libraries/User_agent.php
@@ -84,7 +84,7 @@ class CI_User_agent {
*/
private function _load_agent_file()
{
- if (is_file(APPPATH.'config/'.ENVIRONMENT.'/user_agents'.EXT))
+ if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/user_agents'.EXT))
{
include(APPPATH.'config/'.ENVIRONMENT.'/user_agents'.EXT);
}