diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index 0cd04cc..e6bcefe 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -48,7 +48,7 @@
 	 * database engines, so this string appears in each driver and is
 	 * used for the count_all() and count_all_results() functions.
 	 */
-	var $count_string = "SELECT COUNT(1) AS numrows ";
+	var $_count_string = "SELECT COUNT(1) AS numrows ";
 
 	// Set "auto commit" by default
 	var $_commit = OCI_COMMIT_ON_SUCCESS;
@@ -396,7 +396,7 @@
 		if ($table == '')
 			return '0';
 
-		$query = $this->query($this->count_string . "FROM ".$table);
+		$query = $this->query($this->_count_string . "FROM ".$table);
 
 		if ($query == FALSE)
 			{