diff --git a/include/class/acc_ledger_history.class.php b/include/class/acc_ledger_history.class.php
index 117764086..3eaf2a64d 100644
--- a/include/class/acc_ledger_history.class.php
+++ b/include/class/acc_ledger_history.class.php
@@ -21,7 +21,7 @@
 
 /***
  * @file 
- * @brief Display history of operation
+ * @brief display or export operations in HTML , PDF or CSV 
  *
  */
 require_once NOALYSS_INCLUDE."/class/acc_ledger_history_generic.class.php";
diff --git a/include/class/acc_ledger_history_financial.class.php b/include/class/acc_ledger_history_financial.class.php
index fdcb95e4d..5b63e801d 100644
--- a/include/class/acc_ledger_history_financial.class.php
+++ b/include/class/acc_ledger_history_financial.class.php
@@ -22,7 +22,7 @@
 
 /**
  * @file
- * @brief displya financial operations
+ * @brief display financial operations in HTML , PDF or CSV 
  * 
  */
 require_once NOALYSS_INCLUDE."/class/acc_ledger_history.class.php";
diff --git a/include/class/acc_ledger_history_purchase.class.php b/include/class/acc_ledger_history_purchase.class.php
index 8782bfbb4..5f2ef6f56 100644
--- a/include/class/acc_ledger_history_purchase.class.php
+++ b/include/class/acc_ledger_history_purchase.class.php
@@ -22,6 +22,7 @@
 /**
  * @file
  * @brief class Acc_Ledger_History_Purchase , list of operations
+ * * display or export operations in HTML , PDF or CSV 
  */
 require_once NOALYSS_INCLUDE."/class/acc_ledger_history.class.php";
 
diff --git a/include/class/acc_ledger_history_sale.class.php b/include/class/acc_ledger_history_sale.class.php
index 22a0dc6a1..bb92637ef 100644
--- a/include/class/acc_ledger_history_sale.class.php
+++ b/include/class/acc_ledger_history_sale.class.php
@@ -22,6 +22,7 @@
 /**
  * @file
  * @brief Acc_Ledger_History : Manage the list (history) of operations for display
+ * display or export operations in HTML , PDF or CSV 
  */
 require_once NOALYSS_INCLUDE."/class/acc_ledger_history.class.php";