diff --git a/df_datalink_ge/src/main.c b/df_datalink_ge/src/main.c
index da0b49c..a80f8c1 100644
--- a/df_datalink_ge/src/main.c
+++ b/df_datalink_ge/src/main.c
@@ -49,6 +49,7 @@ void Phy_IntrHandler(void *context);
 void PeriodicPull_Handler(void *callBackRef);
 void ScuTimer_IntrHandler(void *context);
 void Systembus_RxIntrHandler(void *context);
+void Systembus_TxIntrHandler(void *context);
 /************************** Constant Definitions *****************************/
 struct callback_desc phy_callback_desc = {
 	.callback = Phy_IntrHandler,
@@ -67,7 +68,7 @@ struct callback_desc sysbus_rx_callback_desc = {
 };
 
 struct callback_desc sysbus_tx_callback_desc = {
-	.callback = Systembus_RxIntrHandler,
+	.callback = Systembus_TxIntrHandler,
 	.ctx = NULL
 };
 
diff --git a/df_datalink_sp/src/main.c b/df_datalink_sp/src/main.c
index 02096c2..13f0313 100644
--- a/df_datalink_sp/src/main.c
+++ b/df_datalink_sp/src/main.c
@@ -45,6 +45,7 @@ void Phy_IntrHandler(void *context);
 void PeriodicPull_Handler(void *callBackRef);
 void ScuTimer_IntrHandler(void *context);
 void Systembus_RxIntrHandler(void *context);
+void Systembus_TxIntrHandler(void *context);
 /************************** Constant Definitions *****************************/
 struct callback_desc phy_callback_desc = {
 	.callback = Phy_IntrHandler,
@@ -63,7 +64,7 @@ struct callback_desc sysbus_rx_callback_desc = {
 };
 
 struct callback_desc sysbus_tx_callback_desc = {
-	.callback = Systembus_RxIntrHandler,
+	.callback = Systembus_TxIntrHandler,
 	.ctx = NULL
 };