diff --git a/system/libraries/Cache/drivers/Cache_apc.php b/system/libraries/Cache/drivers/Cache_apc.php
index de75719..79d91b3 100644
--- a/system/libraries/Cache/drivers/Cache_apc.php
+++ b/system/libraries/Cache/drivers/Cache_apc.php
@@ -132,7 +132,7 @@
 	 */
 	public function is_supported()
 	{
-		if ( ! extension_loaded('apc') OR ! function_exists('apc_store'))
+		if ( ! extension_loaded('apc') OR ini_get('apc.enabled') != "1")
 		{
 			log_message('error', 'The APC PHP extension must be loaded to use APC Cache.');
 			return FALSE;
@@ -148,4 +148,4 @@
 // End Class
 
 /* End of file Cache_apc.php */
-/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */
\ No newline at end of file
+/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */