diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php
index 6471716..f89000d 100644
--- a/system/database/drivers/odbc/odbc_driver.php
+++ b/system/database/drivers/odbc/odbc_driver.php
@@ -235,7 +235,7 @@
 	function escape_str($str)	
 	{
 		// ODBC doesn't require escaping
-		return $str;
+		return $this->input->_remove_invisible_characters($str);
 	}
 	
 	// --------------------------------------------------------------------